Appeal No. 1997-3701 13
Application No. 08/141,457
See pages 3 and 16. The sulfur compounds further act as antifading agents. See page 5.
The compounds disclosed are designated as Formulas (I) and (II) and have sulfide groups
present therein. See pages 5 and 6. Accordingly, we conclude that these compounds
function as photographic element stabilizers.
Based upon the above analyses, we conclude that it would have been obvious to
the person having ordinary skill in the art to have added the respective sulfide, sulfoxy or
sulfone stabilizers disclosed by Rody ‘271, Rody ‘665, Negoro, J63/220142, Lok,
Fuseya, Okamura, or J61/250641 to a magenta layer containing pyrazolone couplers of
the claimed subject matter in view of the teachings of the primary references that suggest
the addition of stabilizers, in conjunction with the teachings of the secondary references
which further disclose the benefits obtained from the addition of stabilizers. Based upon
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