In re Wilder

BALDWIN, Judge.

This appeal is from the April 30, 1976 decision of the Patent and Trademark Office (PTO) Board of Appeals (board) affirming the rejection of claim 1, the sole claim in application serial No. 249,118,1 filed May 1, 1972, for “N-(1,4-Dimethylamyl)-N'-Phenyl-P-Phenylenediamine,” as obvious under 35 U.S.C. § 103 in view of Biswell.2 We affirm.

The Invention

Appellant claims a single chemical compound which is useful as an antidegradant in rubber and has minimal toxicity to human skin. As appellant points out in his specification, there is a long-term art recognition that N-alkyl-N…