Legal Opinion
Westinghouse Air Brake Co. v. Schwarze Electric Co.
Court of Appeals for the Sixth Circuit
Decided November 9, 1939No. 7888, 7889PublishedCited by 8 opinions
1Opinion of the Court
HICKS, Circuit judge.
The Westinghouse Air Brake Company, assignee, and E. A. Laboratories, Inc., licensee, sued Schwarze Electric Company for infringement of the five claims of reissue Patent No. 18,682, December 6, 1932, to McCune and Johnson. Schwarze brought a cross-action for infringement of Claims 1, 2, 3, 4, 5, 6 and 8 of Patent No. 2,039,694, May 5, 1936, to Von Voightlander; and for infringement of Claims 4 and 11 of Patent No. 1,888,684, August 5, 1931, to Middleton.
The District Court dismissed the bill and the counterclaim, holding all three patents void for lack of invention as to…
2Cases cited5 opinions
- Railroad Supply Co. v. Elyria Iron & Steel Co.Supreme Court of the United States · 1917
- Peters v. HansonSupreme Court of the United States · 1889
- Adams v. Galion Iron Works & Mfg. Co.Court of Appeals for the Sixth Circuit · 1930
- Paquette v. Potter Mfg. Co.Court of Appeals for the Sixth Circuit · 1931
- Excelsior Steel Furnace Co. v. Williamson Heater Co.Court of Appeals for the Sixth Circuit · 1923
3Cited by8 opinions
- Allied Wheel Products, Inc. v. RudeCourt of Appeals for the Sixth Circuit · 1953
- Consolidated Electrodynamics Corporation, a Corporation v. Midwestern Instruments, Inc., a CorporationCourt of Appeals for the Tenth Circuit · 1958
- Ranco, Inc. v. GwynnCourt of Appeals for the Sixth Circuit · 1942
- F. E. Myers & Brother Co. v. Goulds Pumps, Inc.District Court, W.D. New York · 1950
- Goldman v. BobinsCourt of Appeals for the Seventh Circuit · 1957
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