In re Fink

From a decision of the Board of Appeals of the United States Patent Office, affirming that of the examiner, refusing to allow *717claims numbered 10 and 11, which were all the claims of appellant’s-application, appeal is taken to this court.

Claim 10 is regarded as illustrative and reads:

10. A composite metal having relatively high electronic emissivity which; comprises an alloy of a highly refractory metal from the imperial class including molybdenum, tantalum and tungsten with an emissive agent from the imperial class including zirconium, cerium, thorium and uranium, said alloy being relatively…