SWEENEY, Chief Judge.
This patent action originally involved two patents issued to the plaintiff on August 15, 1961. Before trial, the plaintiff disclaimed one of the patents—U.S. 2,996,417—which had been issued on an application filed June 1, 1960, so that there remain in suit only the claims of the other patent—U.S. 2,996,609—issued on an application filed July 7, 1958. While this case is concerned only with the questions of validity...
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