In re Mlot-Fijalkowski

MARKEY, Chief Judge.

This is an appeal from a decision of the Patent and Trademark Office (PTO) Board of Appeals (board) sustaining the examiner’s rejection of claims 1-13 in application serial No. 818,444, filed July 25, 1977, entitled “Visible Dye Penetrant System,” as obvious under 35 U.S.C. § 103 in view of Sockman et al. (Sockman)1 combined with either Vincent et al. (Vincent)2 or Skelly et al. (Skelly).3 We affirm.

BACKGROUND

The Invention

Appellant claims an improvement in the art of non-destructive testing of workpieces for surface discontinuities using dye penetrants. The basic prior art…