Appeal No. 1997-0486
Application 08/417,290
founded. Accordingly, we reverse these rejections.
Cullinan teaches that a commercial process for use with
color reversal photographic elements which contain couplers in
silver halide emulsion layers or layers contiguous thereto
uses, in order, the following processing baths: first
developer, wash, reversal, color developer, bleach, fix, wash
and stabilizer (col. 1, line 65 - col. 2, line 2). Cullinan
includes a bleach-accelerating bath between the color
developing bath and the bleaching bath, and states that a
bleach-accelerating bath is also referred to in the art as a
conditioning bath (col. 2, lines 15-17), which is the type of
bath recited in appellants’ claims.
Cullinan discloses that the conditioning solution has a
pH of about 4.5 to about 6.5 and contains a bleach
accelerating agent and a formaldehyde precursor (col. 2,
lines 12-17; col. 5, lines 56-66). The conditioning solution
typically contains ethylenediaminetetraacetic acid (EDTA) as a
sequestering agent which prevents the formation of iron stain
in the emulsion layers (col. 5, lines 49-53). EDTA falls
within the scope of the polyaminocarboxylic acid formula
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