`
`UNITED STATES PATENT AND TRADEMARK OFFICE
`
`UNITED STATES DEPARTMENT OF COMMERCE
`United States Patent and Trademark Office
`Address: COMIVHSSIONER FOR PATENTS
`PO. Box 1450
`Alexandria1 Virginia 22313-1450
`wwwusptogov
`
`
`
`
`
`15/057,950
`
`03/01/2016
`
`Takashi TOYOOKA
`
`065933—0711
`
`2737
`
`53080
`7590
`01/02/2018
`McDermon Will and Emery LLP —
`The McDermott Building
`SCHWARZENBERG, PAUL
`500 North Capitol Street, NW.
`WASHINGTON, DC 20001
`
`PAPER NUMBER
`
`3744
`
`NOTIFICATION DATE
`
`DELIVERY MODE
`
`01/02/2018
`
`ELECTRONIC
`
`Please find below and/0r attached an Office communication concerning this application or proceeding.
`
`The time period for reply, if any, is set in the attached communication.
`
`Notice of the Office communication was sent electronically on above—indicated "Notification Date" to the
`following e—mail address(es):
`
`mweipdocket @ mwe.com
`
`PTOL—90A (Rev. 04/07)
`
`

`

`
`
`Applicant(s)
`Application No.
` 15/057,950 TOYOOKA ET AL.
`
`Examiner
`Art Unit
`AIA (First Inventorto File)
`Office Action Summary
`
`3744Paul Schwarzenberg $2213
`
`-- The MAILING DA TE of this communication appears on the cover sheet with the correspondence address --
`Period for Reply
`
`A SHORTENED STATUTORY PERIOD FOR REPLY IS SET TO EXPIRE g MONTHS FROM THE MAILING DATE OF
`THIS COMMUNICATION.
`Extensions of time may be available under the provisions 0137 CFR 1.136(a).
`after SIX (6) MONTHS from the mailing date of this communication.
`If NO period for reply is specified above, the maximum statutory period will apply and will expire SIX (6) MONTHS from the mailing date of this communication.
`Failure to reply within the set or extended period for reply will, by statute, cause the application to become ABANDONED (35 U.S.C. § 133).
`Any reply received by the Office later than three months after the mailing date of this communication, even if timely filed, may reduce any
`earned patent term adjustment. See 37 CFR 1.704(b).
`
`In no event, however, may a reply be timely filed
`
`-
`-
`
`Status
`
`1)IXI Responsive to communication(s) filed on 8/23/2017.
`[I A declaration(s)/affidavit(s) under 37 CFR 1.130(b) was/were filed on
`
`2b)|:| This action is non-final.
`2a)IZ| This action is FINAL.
`3)I:I An election was made by the applicant in response to a restriction requirement set forth during the interview on
`
`
`; the restriction requirement and election have been incorporated into this action.
`
`4)|:I Since this application is in condition for allowance except for formal matters, prosecution as to the merits is
`closed in accordance with the practice under EX parte Quay/e, 1935 CD. 11, 453 O.G. 213.
`
`3) D Interview Summary (PT0_413)
`1) E Notice of References Cited (PTO-892)
`Paper No(s)/Mai| Date.
`.
`.
`—
`4) I:I Other'
`2) D Information Disclosure Statement(s) (PTO/SB/08a and/or PTO/SB/08b)
`
`Paper No(s)/Mai| Date .
`U.S. Patent and Trademark Office
`PTOL-326 (Rev. 11-13)
`
`Office Action Summary
`
`Part of Paper No./Mai| Date 20171212
`
`Disposition of Claims*
`5)|XI Claim(s) L6is/are pending in the application.
`5a) Of the above claim(s)
`is/are withdrawn from consideration.
`6 III Claim s) _ is/are allowed.
`s L6 is/are rejected.
`
`is/are objected to.
`
`) )
`
`_
`
`
`are subject to restriction and/or election requirement.
`9)|:l Claim(s
`)
`* If any claims have been determined allowable, you may be eligible to benefit from the Patent Prosecution Highway program at a
`
`participating intellectual property office for the corresponding application. For more information, please see
`htt
`://www.usoto. ov/ atents/init events"
`h/index.‘s
`
`
`
`
`
`or send an inquiry to PF"I-Ifeedback{<‘buspto.qov.
`
`Application Papers
`
`10)I:I The specification is objected to by the Examiner.
`11)|Z| The drawing(s) filed on 3/1/2016 is/are: a)lZl accepted or b)I:I objected to by the Examiner.
`Applicant may not request that any objection to the drawing(s) be held in abeyance. See 37 CFR 1.85(a).
`
`Replacement drawing sheet(s) including the correction is required if the drawing(s) is objected to. See 37 CFR 1.121 (d).
`
`Priority under 35 U.S.C. § 119
`12)IZI Acknowledgment is made of a claim for foreign priority under 35 U.S.C. §119(a)-(d) or (f).
`Certified copies:
`
`b)I:I Some” c)I:I None of the:
`a)le All
`1.I:I Certified copies of the priority documents have been received.
`2.I:I Certified copies of the priority documents have been received in Application No.
`3.I:I Copies of the certified copies of the priority documents have been received in this National Stage
`
`application from the International Bureau (PCT Rule 17.2(a)).
`** See the attached detailed Office action for a list of the certified copies not received.
`
`Attachment(s)
`
`
`
`

`

`Application/Control Number: 15/057,950
`
`Page 2
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`Art Unit: 3744
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`DETAILED ACTION
`
`Notice of Pre-AIA or AIA Status
`
`1.
`
`The present application, filed on or after March 16, 2013, is being examined
`
`under the first inventor to file provisions of the AIA.
`
`Response to Amendment
`
`2.
`
`Examiner acknowledges the amended claims made on 8/23/2017 whereby:
`
`claims 1-3 and 6 were amended; and claims 4 and 5 remain as originally filed.
`
`Claim Rejections - 35 USC § 103
`
`In the event the determination of the status of the application as subject to
`
`AIA 35 U.S.C. 102 and 103 (or as subject to pre-AIA 35 U.S.C. 102 and 103) is
`
`incorrect, any correction of the statutory basis for the rejection will not be
`
`considered a new ground of rejection if the prior art relied upon, and the rationale
`
`supporting the rejection, would be the same under either status.
`
`The following is a quotation of 35 U.S.C. 103 which forms the basis for all
`
`obviousness rejections set forth in this Office action:
`
`A patent for a claimed invention may not be obtained, notwithstanding that the
`claimed invention is not identically disclosed as set forth in section 102, if the
`differences between the claimed invention and the prior art are such that the claimed
`invention as a whole would have been obvious before the effective filing date of the
`claimed invention to a person having ordinary skill in the art to which the claimed
`invention pertains. Patentability shall not be negated by the manner in which the
`invention was made.
`
`

`

`Application/Control Number: 15/057,950
`
`Page 3
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`Art Unit: 3744
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`3.
`
`Claims 1-6 are rejected under 35 U.S.C. 103 as being unpatentable over WO
`
`2011/150940 to Svendsen et al. (hereinafter referred to as Svendsen), in view of DE
`
`102008047753 to Sonnekalb et al. (hereinafter referred to as Sonnekalb) and further in
`
`view of JP 2001019944 to Yoshida et al. (hereinafter referred to as Yoshida).
`
`a)
`
`In regards to claim 1, Svendsen discloses a refrigeration apparatus (cooling
`
`system used in ultra low temperature freezers, page 6, lines 17-18),
`
`comprising: a refrigerant circuit including a compressor (compressor 4, fig. 1),
`
`a condenser (condenser 8, fig. 1), a decompressor (capillary tube 20, fig. 1),
`
`and an evaporator (evaporator 22, fig. 1) connected in this order in a loop
`
`(cooling system 2 comprises a compressor 4 with an outlet connected to a
`
`condenser 8 from which refrigerant flows to a capillary tube 20 then into an
`
`evaporator 22 and back to the inlet of compressor 4, page 10, lines 9-16),
`
`wherein, as a refrigerant in the refrigerant circuit, a refrigerant composite
`
`material (system uses mixture of refrigerants, page 5, lines 17-22) that contains a
`
`first refrigerant of an ultralow temperature range refrigerant having a boiling point
`
`(mixture of refrigerants is adjusted to a specific temperature by mixing
`
`refrigerants with low boiling points with normal boiling points, page 8, lines 19-
`
`21), and a second refrigerant that is soluble in the carbon dioxide (R744) at a
`
`temperature lower than a boiling point of the carbon dioxide (R744) is used
`
`(mixture of refrigerants may contain 515% R600a, pages 12, lines 1-4), the
`
`

`

`Application/Control Number: 15/057,950
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`Page 4
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`Art Unit: 3744
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`second refrigerant added in a proportion (mixture of refrigerants may contain 5-
`
`15% R600a, pages 12, lines 1-4), and
`
`refrigeration performance of not more than -80C is achieved by causing the
`
`first refrigerant to evaporate in the evaporator (possible with refrigerant to
`
`achieve temperatures as low as -90 degrees C, page 6, lines 4-5).
`
`However, Svendsen fails to disclose a refrigerant composite material that
`
`contains a refrigerant having a boiling point of not less than -89.0 C and not more
`
`than -78.1 C, and carbon dioxide (R744), the refrigerant added in a proportion
`
`that prevents the carbon dioxide (R744) from forming a solidified portion, and as
`
`the second refrigerant dissolves the carbon dioxide (R744), the carbon dioxide
`
`(R744) is retained in a liquid phase or in a gas phase or the solidified portion is
`
`melted in a suction pipe through which the refrigerant that returns from the
`
`evaporator to the compressor passes.
`
`Sonnekalb, in the related field of refrigeration systems, teaches a refrigerant
`
`that contains carbon dioxide (R744) (carbon dioxide R744 is a preferred low
`
`temperature high pressure refrigerant for the first refrigerant circuit 3, para. 0044,
`
`fig. 1) and wherein as the second refrigerant dissolves the carbon dioxide
`
`(R744), the carbon dioxide (R744) is retained in a liquid phase or in a gas phase
`
`(first heat exchanger 11 can be a cascade heat exchanger with heat transferred
`
`from the refrigerant of the first refrigerant circuit 3 to the refrigerant of the second
`
`refrigerant circuit 5, para. 0037, fig. 1).
`
`It would have been obvious to one skilled
`
`in the art at the time of the invention to modify the cooling system of Svendsen
`
`

`

`Application/Control Number: 15/057,950
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`Page 5
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`Art Unit: 3744
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`with the refrigeration system of Sonnekalb to provide wherein as the second
`
`refrigerant dissolves the carbon dioxide (R744), the carbon dioxide (R744) is
`
`retained in a liquid phase or in a gas phase. The motivation for doing so would
`
`have been to transfer heat from the first refrigerant to the second refrigerant
`
`(Sonnekalb, para. 0037).
`
`Yoshida, in the related field of low temperature working fluid, teaches a
`
`refrigerant that contains a refrigerant having a boiling point of not less than -89.0
`
`C and not more than -78.1 C (low temperature working fluid mixture contains
`
`ethane R170, para. 0022), and carbon dioxide (R744) (low temperature working
`
`fluid mixture contains CO2, para. 0022), and the refrigerant added in a proportion
`
`(CO2 and R170 are mixed so as to contain not less than 60% by weight of CO2,
`
`para. 0022) that prevents the carbon dioxide (R744) from forming a solidified
`
`portion (low temperature working fluid composed CO2 and R170 is operated at a
`
`condensing temperature and an evaporation temperature which prevents the risk
`
`of solidification of CO2, para. 0026).
`
`It would have been obvious to one skilled in
`
`the art at the time of the invention to modify the cooling system of Svendsen with
`
`the refrigerant of Yoshida to provide wherein a refrigerant that contains a
`
`refrigerant having a boiling point of not less than -89.0 C and not more than -78.1
`
`C, and carbon dioxide (R744). The motivation for doing so would have been to
`
`mix C02 and R170 because their refrigerating capacity and coefficient of
`
`performance are superior to alternative HFC mixed refrigerants (Yoshida, para.
`
`0022)
`
`

`

`Application/Control Number: 15/057,950
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`Page 6
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`Art Unit: 3744
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`Furthermore, per claim 1, Svendsen does not explicitly teach the refrigerant
`
`added in a proportion that prevents the carbon dioxide (R744) from forming a
`
`solidified portion. Svendsen does, however, disclose the second refrigerant
`
`added in a proportion (mixture of refrigerants may contain 515% R600a, pages
`
`12, lines 1-4). One skilled in the art would know that as more of a particular
`
`refrigerant is added to a refrigerant composition the phase transition temperature
`
`of the refrigerant composition changes. Therefore the phase transition
`
`temperatures of a refrigerant composition is recognized as a result-effective
`
`variable, Le. a variable which achieves a recognized result.
`
`In this case, the
`
`recognized result is that changing the percentages of the refrigerants in the
`
`refrigerant composition determines the phase transition temperature of the
`
`refrigerant composition. Therefore, since the general conditions of the claim, i.e.
`
`adding a second refrigerant in a proportion were disclosed in the prior art by
`
`Svendsen, it is not inventive to discover the optimum workable value of the
`
`second refrigerant by routine experimentation, and it would have been obvious to
`
`one of ordinary skill in the art at the time the invention was made to provide the
`
`refrigerant added in a proportion that prevents the carbon dioxide (R744) from
`
`forming a solidified portion.
`
`b)
`
`In regards to claim 2, modified Svendsen discloses the refrigeration
`
`apparatus according to claim 1, but fails to disclose wherein the first
`
`refrigerant contains: difluoroethylene (R1132a),
`
`

`

`Application/Control Number: 15/057,950
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`Page 7
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`Art Unit: 3744
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`a mixed refrigerant of difluoroethylene (R1 132a) and hexafluoroethane
`
`(R116),
`
`a mixed refrigerant of difluoroethylene (R1132a) and ethane (R170),
`
`ethane (R170),
`
`a mixed refrigerant of ethane (R170) and hexafluoroethane (R116),
`
`an azeotropic mixture (R508A, boiling point -85.7 C) of 39 mass%
`
`trifluoromethane (R23) and 61 mass% hexafluoroethane (R116),
`
`or an azeotropic mixture (R508B, boiling point -86.9 C) of 46 mass%
`
`trifluoromethane (R23) and 54 mass% hexafluoroethane (R116).
`
`Yoshida, in the related field of low temperature working fluid, teaches
`
`wherein the first refrigerant contains ethane (R170) (low temperature working
`
`fluid mixture contains ethane R170, para. 0022).
`
`It would have been obvious to
`
`one skilled in the art at the time of the invention to modify the cooling system of
`
`Svendsen with the refrigerant of Yoshida to provide wherein the first refrigerant
`
`contains ethane (R170). The motivation for doing so would have been to mix
`
`C02 and R170 because their refrigerating capacity and coefficient of
`
`performance are superior to alternative HFC mixed refrigerants (Yoshida, para.
`
`0022)
`
`c)
`
`In regards to claim 3, modified Svendsen discloses the refrigeration
`
`apparatus according to claim 1, and further discloses wherein the second
`
`

`

`Application/Control Number: 15/057,950
`
`Page 8
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`Art Unit: 3744
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`refrigerant contains isobutane (R600a) (mixture of refrigerants may contain 5-
`
`15% R600a, page 12, lines 1-4).
`
`d)
`
`In regards to claim 4, modified Svendsen discloses the refrigeration
`
`apparatus according to claim 1, but fails to disclose wherein the carbon
`
`dioxide (R744) is added in a proportion greater than 20% to a total mass of
`
`the refrigerant composite material.
`
`Yoshida, in the related field of low temperature working fluid, teaches wherein
`
`the carbon dioxide (R744) is added in a proportion greater than 20% to a total
`
`mass of the refrigerant composite material (CO2 and R170 are mixed so as to
`
`contain not less than 60% by weight of CO2, para. 0022).
`
`It would have been
`
`obvious to one skilled in the art at the time of the invention to modify the cooling
`
`system of Svendsen with the refrigerant of Yoshida to provide wherein the
`
`carbon dioxide (R744) is added in a proportion greater than 20% to a total mass
`
`of the refrigerant composite material. The motivation for doing so would have
`
`been to mix C02 and R170 so as to contain 60% by weight or more of CO2
`
`because their refrigerating capacity and coefficient of performance are superior
`
`to alternative HFC mixed refrigerants (Yoshida, para. 0022).
`
`e)
`
`In regards to claim 5, modified Svendsen discloses the refrigeration
`
`apparatus according to claim 1, but fails to disclose wherein the second
`
`

`

`Application/Control Number: 15/057,950
`
`Page 9
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`Art Unit: 3744
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`refrigerant is added in a proportion at which the carbon dioxide (R744) can be
`
`prevented from turning into dry ice.
`
`Yoshida, in the related field of low temperature working fluid, teaches wherein
`
`the second refrigerant is added in a proportion (CO2 and R170 are mixed so as
`
`to contain not less than 60% by weight of CO2, para. 0022) at which the carbon
`
`dioxide (R744) can be prevented from turning into dry ice (low temperature
`
`working fluid composed CO2 and R170 is operated at a condensing temperature
`
`and an evaporation temperature which prevents the risk of solidification of CO2,
`
`para. 0026).
`
`It would have been obvious to one skilled in the art at the time of
`
`the invention to modify the cooling system of Svendsen with the refrigerant of
`
`Yoshida to provide wherein the second refrigerant is added in a proportion at
`
`which the carbon dioxide (R744) can be prevented from turning into dry ice. The
`
`motivation for doing so would have to provide a low temperature working fluid
`
`mixture composed of CO2 that prevents the risk of solidification of CO2 on the
`
`evaporization side of the refrigeration cycle apparatus (Yoshida, para. 0026).
`
`f)
`
`In regards to claim 6, modified Svendsen discloses the refrigeration
`
`apparatus according to claim 1, and further discloses wherein:
`
`the refrigerant circuit constitutes an independent refrigerant closed circuit that
`
`condenses a refrigerant discharged from a compressor, decompresses the
`
`refrigerant with a capillary tube, and exhibits a cooling effect by causing the
`
`refrigerant to evaporate in an evaporator (cooling system 2 comprises a
`
`

`

`Application/Control Number: 15/057,950
`
`Page 10
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`Art Unit: 3744
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`compressor 4 with an outlet connected to a condenser 8 from which refrigerant
`
`flows to a capillary tube 20 then into an evaporator 22 and back to the inlet of
`
`compressor 4, page 10, lines 9-16), and
`
`the refrigerant composite material is used as a refrigerant in the refrigerant
`
`circuit (system uses mixture of refrigerants, page 5, lines 17-22) that exhibits a
`
`final cooling effect in the evaporator in the refrigerant circuit (by adding
`
`refrigerant with a natural boiling point that is very low it is possible to achieve
`
`very low temperatures at the evaporator, page 8, lines 17-19). However,
`
`Svendsen fails to disclose wherein the refrigerant circuit includes a high-
`
`temperature-side refrigerant circuit and a low-temperature-side refrigerant circuit
`
`that each constitute an independent refrigerant closed circuit, the evaporator in
`
`the high-temperature-side refrigerant circuit and the condenser in the low-
`
`temperature-side refrigerant circuit constitute a cascade heat exchanger, and
`
`refrigerant in the low-temperature side refrigerant circuit.
`
`Sonnekalb, in the related field of refrigeration systems, teaches wherein the
`
`refrigerant circuit includes a high-temperature-side refrigerant circuit (refrigerant
`
`of the second refrigerant circuit 5 is usually a high temperature low pressure
`
`refrigerant, para. 0043) and a low-temperature-side refrigerant circuit (low
`
`temperature high pressure first refrigerant circuit 3, para. 0035, fig. 1) that each
`
`constitute an independent refrigerant closed circuit (refrigerant circuit 3 and
`
`refrigerant circuit 5 are closed circuits, fig. 1), the evaporator in the high-
`
`temperature-side refrigerant circuit and the condenser in the low-temperature-
`
`

`

`Application/Control Number: 15/057,950
`
`Page 11
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`Art Unit: 3744
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`side refrigerant circuit constitute a cascade heat exchanger (first heat exchanger
`
`can be switched as a cascade heat exchanger, para. 0037, fig. 1), and refrigerant
`
`in the low-temperature side refrigerant circuit (carbon dioxide R744 is a preferred
`
`low temperature high pressure refrigerant for the first refrigerant circuit 3, para.
`
`0044, fig. 1).
`
`It would have been obvious to one skilled in the art at the time of
`
`the invention to modify the cooling system of Svendsen with the refrigeration
`
`system of Sonnekalb to provide wherein the refrigerant circuit includes a high-
`
`temperature-side refrigerant circuit and a low-temperature-side refrigerant circuit
`
`that each constitute an independent refrigerant closed circuit, the evaporator in
`
`the high-temperature-side refrigerant circuit and the condenser in the low-
`
`temperature-side refrigerant circuit constitute a cascade heat exchanger, and
`
`refrigerant in the low-temperature side refrigerant circuit. The motivation for
`
`doing so would have been to use a low temperature mixed refrigerant that does
`
`not destroy the ozone layer and has low greenhouse effect in a cascade
`
`refrigeration system (Sonnekalb, page 1, second paragraph).
`
`Response to Arguments
`
`Applicant’s arguments filed on 8/23/2017 have been fully considered but they are
`
`not persuasive. With respect to the applicant’s arguments for the rejection of
`
`Independent claim 1 pursuant to 35 USC § 103, the Applicant argues that the applied
`
`references fail to teach all of the limitations of amended claim 1. As referenced above
`
`in the Examiner’s art rejections pursuant to 35 USC § 103, the combination of
`
`

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`Application/Control Number: 15/057,950
`
`Page 12
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`Art Unit: 3744
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`Svendsen, Sonnekalb, and Yoshida teaches all of the limitations of amended claim 1.
`
`Applicant specifically argues that Sonnekalb fails to teach “a second refrigerant that
`
`dissolves the carbon dioxide”. Examiner respectfully disagrees with applicant’s
`
`argument. As indicated in the office action, Sonnekalb discloses a cascade heat
`
`exchanger in which Carbon Dioxide is the refrigerant of a first circuit that is then heated
`
`by the refrigerant in a second circuit. Applicant also argues that Sonnekalb fails to
`
`disclose the limitation added in the amendment to claim 1 for "a second refrigerant
`
`added in a proportion that prevents the carbon dioxide from forming a solidified portion".
`
`Examiner respectfully disagrees with Applicant’s argument. As indicated above in the
`
`office action, Svendsen discloses "a second refrigerant added in a proportion” and
`
`Yoshida teaches “refrigerant added in a proportion that prevents the carbon dioxide
`
`from forming a solidified portion”. Furthermore, since the Applicant’s argument that
`
`claims 2-6 should be allowed based on their dependability on independent claim 1
`
`is
`
`moot, the rejections for claims 2-6 are also maintained.
`
`Conclusion
`
`Applicant’s amendment necessitated the new grounds of rejection presented in
`
`this Office action. Accordingly, THIS ACTION IS MADE FINAL. See MPEP
`
`§7G§.Q7(a). Applicant is reminded of the extension of time policy as set forth in 37 CFR
`
`1.136(a).
`
`A shortened statutory period for reply to this final action is set to expire THREE
`
`MONTHS from the mailing date of this action. In the event a first reply is filed
`
`

`

`Application/Control Number: 15/057,950
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`Page 13
`
`Art Unit: 3744
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`within TWO MONTHS of the mailing date of this final action and the advisory action is
`
`not mailed until after the end of the TH REE-MONTH shortened statutory period, then
`
`the shortened statutory period will expire on the date the advisory action is mailed, and
`
`any extension fee pursuant to 37 CFR 1.136(a) will be calculated from the mailing date
`
`of the advisory action. In no event, however, will the statutory period for reply expire
`
`later than SIX MONTHS from the mailing date of this final action.
`
`4.
`
`Any inquiry concerning this communication or earlier communications from the
`
`examiner should be directed to Paul Schwarzenberg whose telephone number is
`
`(313)446-6611. The examiner can normally be reached on Monday - Friday; 8:00 AM -
`
`5:00 PM Eastern Standard Time.
`
`Examiner interviews are available via telephone, in-person, and video
`
`conferencing using a USPTO supplied web-based collaboration tool. To schedule an
`
`interview, applicant is encouraged to use the USPTO Automated Interview Request
`
`(AIR) at http://www.uspto.gov/interviewpractice.
`
`If attempts to reach the examiner by telephone are unsuccessful, the examiner’s
`
`supervisor, Jianying Atkisson, can be reached on (571) 270-7740. The fax phone
`
`number for the organization where this application or proceeding is assigned is (571)
`
`273-8300.
`
`Information regarding the status of an application may be obtained from the
`
`Patent Application Information Retrieval (PAIR) system. Status information for
`
`published applications may be obtained from either Private PAIR or Public PAIR.
`
`

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`Application/Control Number: 15/057,950
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`Page 14
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`Art Unit: 3744
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`Status information for unpublished applications is available through Private PAIR only.
`
`For more information about the PAIR system, see http://pair-direct.uspto.gov. Should
`
`you have questions on access to the Private PAIR system, contact the Electronic
`
`Business Center (EBC) at 866-217-9197 (toll-free). If you would like assistance from a
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`USPTO Customer Service Representative or access to the automated information
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`system, call 800-786-9199 (IN USA OR CANADA) or 571-272-1000.
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`/P. S./
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`Examiner, Art Unit 3744
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`/DAVID TEITELBAUM/
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`Primary Examiner, Art Unit 3744
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