Legal Opinion
Walker Process Equipment, Inc. v. Fmc Corporation
Court of Appeals for the Seventh Circuit
Decided March 10, 1966No. 14880PublishedCited by 25 opinions
1Opinion of the Court
HASTINGS, Chief Judge.
This is an appeal by Walker Process Equipment, Inc. from an order of the United States District Court for the Northern District of Illinois dismissing, for lack of jurisdiction because of the absence of an actual controversy, Walker’s declaratory judgment action against the F.M.C. Corporation (FMC).1 In its complaint, Walker sought to have a patent owned by FMC, U.S. Patent No. 2,777,815, entitled “Sewage Digestion Process”, declared invalid, unenforceable, and not infringed by any use of Walker’s digester stirrer equipment.
Walker manufactures and sells “Gas-lifter”…
2Cases cited4 opinions
- Aralac, Inc. v. Hat Corporation of AmericaCourt of Appeals for the Third Circuit · 1948
- National Coupling Company, Inc. v. Press-Seal Gasket CorporationCourt of Appeals for the Seventh Circuit · 1963
- Fmc Corp. v. City of GreensboroDistrict Court, M.D. North Carolina · 1962
- Fmc Corporation v. The City of GreensboroCourt of Appeals for the Fourth Circuit · 1964
3Cited by25 opinions
- Grafon Corporation v. Elmer P. Hausermann and Marten C. HausermannCourt of Appeals for the Seventh Circuit · 1979
- International Harvester Company v. Deere & CompanyCourt of Appeals for the Seventh Circuit · 1980
- Diamond Shamrock Corporation and Fireman's Mutual Insurance Company v. Lumbermens Mutual Casualty CompanyCourt of Appeals for the Seventh Circuit · 1969
- Trw, Inc. v. Ellipse Corporation and Ford Motor Company, CorporationsCourt of Appeals for the Seventh Circuit · 1974
- Sticker Industrial Supply Corp. v. Blaw-Knox Co., and A. J. Boynton & Co.Court of Appeals for the Seventh Circuit · 1966
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