Appeal No. 95-0882
Application No. 08/024,571
The subject matter on appeal relates to a process for
preparing sulphonylurea salts by reacting a sulphonamide to form
a sulphonamide salt which is then reacted with a carbamate
(urethane) to thereby yield the desired salt product. This
appealed subject matter is adequately illustrated by independent
claim 1, a copy of which taken from the appellant's brief is
appended to this decision.
The following references are relied upon by the examiner as
evidence of obviousness:
Föry et al. (Fory) 4,690,707 Sep. 1, 1987
Riebel et al. 2,032,398 Jun. 20, 1991
(Riebel) (Canada)
Claims 1 through 8, 10 and 11 are rejected under 35 U.S.C.2
§ 103 as being unpatentable over Fory in view of Riebel.
We cannot sustain this rejection.
It is the examiner's basic position that Riebel would have
suggested to one with ordinary skill in the art "replacing the
intermediate sulphonamide [of Fory] with its salt and reacting it
2We note that the amendment correcting minor
informalities in dependent claims 3, 6 and 7 which accompanied
the brief has not been clerically processed. This oversight
should be corrected upon return of the application to the
jurisdiction of the examiner.
2
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