Appeal No. 1996-2738
Application 08/252,501
DECISION ON APPEAL
This is an appeal under 35 U.S.C. § 134 from the
examiner’s final rejection of claims 25 through 27 and 32
through 38, which are the only claims remaining in this
application.
According to appellants, the invention is directed to a
process for making paper wherein cationic polysaccharide
derivatives having at least two cationic moieties bonded to
each derivatized saccharide monomer are added to paper stock
during manufacture to improve drainage, pigment and pulp
retention and paper strength (Brief, page 2).
Appellants state that the claims stand or fall together
for each of the individual grounds of rejection (Id.). Claims
25 and 32 are illustrative of the subject matter on appeal and
a reproduction of these claims is attached as an Appendix to
this decision.
The examiner has relied upon the following references in
support of the rejections:
Hofreiter et al. (Hofreiter) 3,067,088 Dec. 4,
1962
2
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