Legal Opinion
American Morgan Co. v. Joy Mfg. Co.
District Court, W.D. Pennsylvania
Decided November 14, 1939No. 3235PublishedCited by 2 opinions
1Opinion of the Court
SCHCONMAKER, District Judge.
We have a patent-suit in which each party is suing the other for the infringement of patents in the field of loading ma*420chines specially adapted for use in loading coal in mines.
Plaintiffs charge defendant with the infringement of its two Morgan Patents, Nos. 1,473,157 and 1,729,177, in its use of a coal-loading machine, comprising relatively laterally swingable articulated frame members, having a coal-carrying conveyor extending throughout its frame members. That subject-matter is claimed to be covered by claim 34 of Patent No. 1,473,157. Likewise it is charged…
2Cases cited9 opinions
- Lincoln Engineering Co. v. Stewart-Warner Corp.Supreme Court of the United States · 1938
- O'Reilly v. MorseSupreme Court of the United States · 1854
- Altoona Publix Theatres, Inc. v. American Tri-Ergon Corp.Supreme Court of the United States · 1935
- Powers-Kennedy Contracting Corp. v. Concrete Mixing & Conveying Co.Supreme Court of the United States · 1930
- Ensten v. Simon, Ascher & Co.Supreme Court of the United States · 1931
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3Cited by2 opinions
- Federal Telephone & Radio Corp. v. Associated Tel. & Tel. Co.District Court, D. Delaware · 1951
- Wilcox Manufacturing Co. v. Eastern Gas & Fuel AssociatesDistrict Court, S.D. West Virginia · 1967