MR. JUSTICE BLACK delivered the opinion of the Court.
The question here is whether the defendant, in a suit to recover royalties only under a terminated patent license agreement containing price-fixing provisions, can challenge the validity of the patent despite a covenant in the license contract that he would not do so.
The petitioner, Edward Katzinger Company, and the respondent, Chicago Metallic Mfg. Company, make and sell tin baking pans. The undenied...
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