Appeal No. 1998-1125 Page 2
Application No. 08/410,247
the production of foams and for solvent cleaning applications
(specification, pages 4 and 5). An understanding of the
invention can be derived from a reading of exemplary claim 1,
which is reproduced below.
1. An azeotropic composition consisting
essentially of
a) from about 26 to about 72% by weight
perfluorohexane and
b) one compound selected from the group
consisting of
1) from about 36 to about 74% by weight 2-
methyl butane or
2) from about 28 to about 53% by weight n-
pentane in which the sum of the weight percent
of a) plus weight percent b) is approximately
100 percent.
The prior art references of record relied upon by the
examiner in rejecting the appealed claims are:
Smits et al. (Smits I) 5,250,579 Oct. 05,
1993
Smits et al. (Smits II) 5,286,759 Feb. 15,
1994
Claims 1-8 stand rejected under 35 U.S.C. § 112, second
paragraph as being indefinite for failing to particularly
point out and distinctly claim the subject matter which
applicants regard as the invention. Claims 1, 2, 4, 6 and 8
stand rejected under 35 U.S.C. § 102 as anticipated by Smits
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