KIRKPATRICK, District Judge.
This action, by Pyrene Manufacturing Company against Radcliffe M. and George G. Urquhart, is for a declaratory judgment that United States patents Nos. 2,106,043, issued January 18, 1938, and 2,198,585, issued April 23, 1940, to the Urquharts, are invalid and not infringed. There is a counterclaim for infringement.
The patents are for method and apparatus for generating and throwing fire-extinguishing foam. The usefulness of foam...
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