RICH, Judge.
This appeal is from the decision of the Patent Office Board of Appeals affirming the examiner's rejection of claims 23-30 and 32-35 in appellants' application entitled "Photographic Elements and Processes Utilizing Mercaptan-Forming Couplers," serial No. 507, 975, filed June 14, 1965, a division of application serial No. 270, 709, filed April 4, 1963, which matured into patent No. 3,227,554 on January 4, 1966. The appealed claims, all of which are for...
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