Application of Francis Trigg Parfrey

WORLEY, Chief Judge.

The sole issue in this appeal is whether appellant is entitled to copy a single claim 1 from a patent. The Board of Appeals affirmed the Primary Examiner’s holding that he was not so entitled. Appellant asks us to reverse.

Appellant seeks to copy claim 15 from

Burch 2,898,633 August 11, 1959,

(filed July 21,1953).

That claim corresponds to claim 13 of the instant application and reads:

“13. The method of forming hollow plastic articles comprising issuing a hollow open-ended substantially tubular formation of thermoplastic material from an orifice, said material of the issued…