Fluor Corporation, Ltd. v. Gulf Interstate Gas Company

RIVES, Circuit Judge.

The district court held invalid all claims, 1 to 12, inclusive, of the Stephens Patent No. 2,405,100. 1 In the opening paragraph of appellant’s brief, it is stated:

“Fluor ultimately asserted validity and infringement of claims 1 and 9 to 12 of the patent, which Gulf denied, and Gulf by its counterclaim asserted invalidity of all the claims in the patent, which assertion was denied by Fluor except as to claims 3 to 7.”

This Court is asked to review that part of the decision which holds invalid claims 1, 2, and 8 to 12, inclusive, of the patent. 2

The patent is concerned…