Legal Opinion
Mercoid Corp. v. Minneapolis-Honeywell Regulator Co.
Court of Appeals for the Seventh Circuit
Decided December 23, 1942No. Nos. 8019, 8020PublishedCited by 4 opinions
1Opinion of the Court
SPARKS, Circuit Judge.
In cause No. 8019, the Mercoid' Corporation (hereafter referred to as Mercoid) asked for a declaratory judgment holding United States Patent No. 1,813,732 to Freeman, owned by Minneapolis-Honeywell Regulator Company (hereafter referred to as Honeywell) void and not infringed, and that that patent was being used to extend the patent monopoly beyond the bounds of its claims in violation of ,the Anti-Trust laws. In cause • No. 8020, Honeywell, before it was notified of Mercoid’s suit, charged Mercoid with infringement of' claims 1, 4, 6 and 9 of the Freeman patent, by its…
2Cases cited13 opinions
- Morton Salt Co. v. G. S. Suppiger Co.Supreme Court of the United States · 1942
- Motion Picture Patents Co. v. Universal Film Manufacturing Co.Supreme Court of the United States · 1917
- United Shoe MacHinery Corp. v. United StatesSupreme Court of the United States · 1922
- Carbice Corp. of America v. American Patents Development Corp.Supreme Court of the United States · 1931
- Bement v. National Harrow Co.Supreme Court of the United States · 1902
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3Cited by4 opinions
- Mercoid Corp. v. Minneapolis-Honeywell Regulator Co.Supreme Court of the United States · 1944
- Inland Steel Products Co. v. MPH Manufacturing Corp.District Court, N.D. Illinois · 1959
- National Labor Relations Board v. Perfect Circle Co.Court of Appeals for the Seventh Circuit · 1947
- Mercoid Corp. v. Minneapolis-Honeywell Regulator Co.Court of Appeals for the Seventh Circuit · 1944