Appeal No. 94-4172
Application 08/001,854
Parton.
For the reasons set forth below, we cannot sustain this
rejection.
In Example 1, Inoue discloses a photographic material or
element comprising a polyester support, an infrared sensitive
silver halide emulsion layer and a hydrophilic colloid upper
protective layer which includes 0.6 g/m of gelatin and 70 mg/m2 2
of colloidal silica having a particle diameter of 10 to 20 mµ as
a matting agent (see lines 37 through 46 in column 31). The
examiner has stated (and the appellants do not argue otherwise)
that the aforementioned quantity of colloidal silica in
patentee’s example results in a coverage equal to 12 grams of
colloidal silica per 100 grams of gelatin hydrophilic colloid.
Thus, appealed claim 1 differs from the Inoue example by
requiring (1) an opaque film support (versus patentee’s polyester
support), (2) an average silica particle size lower than 15
nanometers (versus patentee’s disclosure of 10 to 20 nanometers)
and (3) a colloidal silica coverage of from 20 to 70 grams per
100 grams of hydrophilic colloid (versus patentee’s coverage of
12 grams colloidal silica per 100 grams hydrophilic colloid).
With the respect to difference (3), the examiner contends
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