Legal Opinion
Becker v. Electric Service Supplies Co.
Court of Appeals for the Seventh Circuit
Decided July 19, 1938No. 6449PublishedCited by 6 opinions
1Opinion of the Court
MAJOR, Circuit Judge.. This action was brought by John Walter Becker, plaintiff, against Electric Service-Supplies Company, defendant, for infringement of United States Letters Patent No. 1,660,316, applied for December 20, 1918- and issued to the plaintiff February 28, 1928. The patent relates to a resurfacing device for commutators of electric ma*367chines. These commutators are made of sections of copper with insulating material, such as mica, between them and the wires of the armature of the machine, which are formed into loops, their ends connected with the commutator bars. The device…
2Cases cited11 opinions
- The Barbed Wire PatentSupreme Court of the United States · 1892
- Eibel Process Co. v. Minnesota & Ontario Paper Co.Supreme Court of the United States · 1923
- Deering v. Winona Harvester WorksSupreme Court of the United States · 1894
- Corona Cord Tire Co. v. Dovan Chemical Corp.Supreme Court of the United States · 1928
- Adamson v. GillilandSupreme Court of the United States · 1917
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3Cited by6 opinions
- E. I. Du Pont De Nemours & Company v. Berkley and Company, Inc., E. I. Du Pont De Nemours & Company v. Berkley and Company, Inc.Court of Appeals for the Eighth Circuit · 1980
- Electric Storage Battery Co. v. ShimadzuSupreme Court of the United States · 1939
- Marvin Edwin Whiteman v. L. G. MathewsCourt of Appeals for the Ninth Circuit · 1954
- International Carbonic Engineering Co. v. Natural Carbonic Products, Inc.District Court, S.D. California · 1944
- C. S. Johnson Company, a Corporation v. Merle W. Stromberg, Doing Business as California Batching Equipment Co.Court of Appeals for the Ninth Circuit · 1957
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