Appeal No. 1996-2738
Application 08/252,501
90, 103 (CCPA 1976).
Both Hofreiter and Jarowenko are directed to paper
manufacturing processes where a specified additive is added
during the paper manufacture to improve, inter alia, the
strength of the paper, pigment retention and water resistance.
See Hofreiter, column 1, lines 17-33, and Jarowenko, column 1,
lines 26-33. We agree with the examiner that, irregardless of
the reaction mechanism for preparing the additives disclosed
by the references, Hofreiter and Jarowenko disclose additives
for use
during paper manufacture that reasonably appear to be
identical
or substantially identical to the claimed “cationic
polysaccharide derivative having at least two cationic
moieties bonded to each derivatized saccharide monomer” (see
the Answer, pages 3-4). See Hofreiter, column 2, lines 15-50,
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