RICH, Judge.
This appeal is from the decision of the Patent Office Board of Appeals affirming the examiner's rejection of claims 57-70 of application serial No. 679, 849, filed August 23, 1957, for "Treatment of Synthetic Rubber Latex." Only claims 57-60 have been appealed.
There were two grounds of rejection of record, the first of which was double patenting over the claims of an application by Carpenter, now patent No. 2,993,020, assigned to the same assignee...
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