Appeal No. 1997-0042
Application No. 07/992,177
glycol monomethylether (Brief, page 2). Claim 3 is
illustrative of the subject matter on appeal and a copy of
this claim is attached as an Appendix to this decision.
The examiner has relied upon the following reference as
evidence of obviousness:
Sasaki et al. (Sasaki) 4,948,525 Aug. 14,
1990
Claims 3-5, 8 and 9 stand rejected under 35 U.S.C. § 103
as unpatentable over Sasaki (Answer, page 3). We reverse the
examiner’s rejection for reasons which follow.
OPINION
The examiner finds that Sasaki discloses a lubricating
oil composition for a refrigerator using 1,1,1,2-
tetrafluoroethane coolant where the base oil is a
polyoxyalkylene glycol with the formula R -(OR ) -OH (Answer,
1 2m
page 3). The examiner further finds that Sasaki does not
specifically teach two limitations from claim 3 on appeal,
namely, that R is methyl and that an ethylene oxide group is
1
always next to the hydroxyl [hydrogen] terminal (Id.). The
examiner concludes that it would have been obvious to one of
2
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