The question involved in this case is whether a eopending patent is part of *787 the “prior art” within the meaning of that term as used in 35 U.S.C. § 103, and whether a copending patent is a bar to a patent application only if it actually describes the invention for which patent is sought.

Having been unsuccessful in the Patent Office in their application for patent, appellants [plaintiffs] filed suit in the District Court to obtain a judgment authorizing appellee [defendant], Commissioner of Patents, to issue the patent applied for by them. The District Court, after a full hearing, rendered an opinion finding for appellee and against appellants, and dismissing the complaint. Hazeltine Research, Inc. v. Ladd, 226 F.Supp. 459 (D.D.C. 1964).

We are in agreement with the opinion of the District Court. Accordingly, it follows that the judgment of the District Court must be and is

Affirmed.