Appeal No. 1997-1752
Application No. 08/451,379
distearyl dimethyl ammonium methyl sulfate, and U.S. '962
discloses distearyl dimethyl ammonium methyl sulfate as a
known blend compatibility additive (see column 6, lines 57 and
58). Also, it is our view that the claim language "consisting
essentially of" does not exclude the blend compatibility
components of U.S. '962, inasmuch as the incorporation of such
components into the presently claimed toners and developers
would not materially affect the basic and novel
characteristics of the claimed compositions. Accordingly, we
urge the examiner to carefully consider the obviousness of the
subject matter defined by the appealed claims in view of U.S.
'962, considered alone, or in combination with other prior art
of record, e.g., U.S. Patent No. 5,510,220 to Nash et al.
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