Mercoid Corp. v. Minneapolis-Honeywell Regulator Co.
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320 U.S. 680 (1944)
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U.S. Supreme Court
Mercoid Corp. v. Minneapolis-Honeywell Regulator Co., 320 U.S. 680 (1944)
Mercoid Corporation v. Minneapolis-Honeywell Regulator Co.
Nos. 58 and 59
Argued December 9, 10, 1943
Decided January 3, 1944.
320 U.S. 680
An owner of a combination patent may not so use it as to control competition in the sale of an unpatented device, even though the unpatented device may be the distinguishing part of the invention, and a court of equity will grant or withhold relief accordingly. Mercoid Corp. v. Mid-Continent Investment Co., ante, p. 320 U. S. 661. P. 320 U. S. 684.
133 F.2d 811 reversed.
Certiorari, 319 U.S. 739, to review a decree which reversed in part and affirmed in part a decree of the District Court, 43 F.Supp. 878, in a patent infringement suit.