Appeal No. 96-2885
Application No. 08/146,862
Appellants' claimed invention is directed to an azeotrope
or azeotrope-like composition consisting essentially of
hydrogen fluoride and either CC1 CF or CC1 FCF .3 3 2 3
Appealed claims 4-7 stand rejected under 35 U.S.C. § 103
as being unpatentable over Lee. Claims 4 and 8-10 stand
rejected under 35 U.S.C. § 102(b) as being anticipated by or,
in the alternative, under 35 U.S.C. § 103 as being
unpatentable over Lantz.
Upon careful consideration of the opposing arguments
presented on appeal, we will sustain the examiner's rejection
of claims 4-7 under § 103 over Lee. However, we will not
sustain the examiner's rejection of claims 4 and 8-10 over
Lantz.
We consider first the examiner's rejection of claims 4-7
under § 103 over Lee. Lee discloses a process of separating
and recovering an organic phase containing fluorocarbons from
an azeotrope or azeotrope-like composition comprising an
admixture of a fluorocarbon and HF. Lee also teaches that
fluorocarbons of particular interest in composition with HF
include the presently claimed CF CCl F (column 4, line 61).
3 2
Accordingly, since Lee is directed to processing azeotrope or
-3-
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