SWAN, Circuit Judge.
The counterclaim was dismissed on the ground that the patents to Cohen were invalid because of unreasonable delay in filing a disclaimer after adverse decisions in interference proceedings in the United States Patent Office. From an affidavit supporting the motion to dismiss, it appears that almost immediately after the issuance of the first Cohen patent, No. 1,555,634, issued September 29, 1925, claims 1 and 2 were placed in interference with...
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