Appeal No. 94-4409
Application 07/958,526
H R’ O
HC = C - C - NR’2
where each R’ is individually selected from H or methyl, and
at least one hydrophilic vinyl-containing sulfonic acid or a
sulfonate salt thereof.
The references of record relied upon by the examiner are:
Uhl et al. (Uhl) 4,471,097 Sep. 11, 1984
Patel et al. (Patel) 5,204,320 Apr. 20, 1993
All appealed claims stand rejected under 35 USC § 103
over Uhl. Additionally, claims 45, 59 and 62 stand rejected
based on the judicially-created doctrine of obviousness-type
double patenting over claims 1 and 9 of U.S. Patent No.
5,204,320 issued to Patel.
THE REJECTION UNDER 35 USC § 103
The appealed claims stand rejected under 35 USC § 103 for
obviousness over Uhl. We affirm this rejection essentially
for the reasons set forth by the examiner in his Answer.
Appellants submit that the current appealed claims are
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