Electric Railroad Signal Co. v. Hall Railway Signal Co.
Supreme Court of the United States
APPEAL PROM THE CIRCuiT COURT OP THE UNITED STATES FOR THE DISTRICT OF CONNECTICUT. This was a suit' in equity to restrain an infringement of a patent for an improvement in electric signalling for railroads. The defence denied the priority of invention, and denied the infringement. The facts which make, the case are fully stated in the opinion of the court.
1Opinion of the CourtJustice Matthews
This is a bill in equity for an injunction to restrain the alleged infringement of letters patent No. 140,536 for an improvement in circuits for electric railroad signals, issued July 1,1873, to Frank L. Pope, of whom the appellants, who were complainants below, are assignees. On final hearing the bill wras dismissed by a decree now brought here for review' by this. appeal.
The drawing which accompanies and illustrates the patent is as follows:
The following is the substantial part of the specification, together with the claims:
“ My invention consists in a peculiar arrangement of electric…
2Cases cited14 opinions
- Seymour v. OsborneSupreme Court of the United States · 1871
- Dunbar v. MyersSupreme Court of the United States · 1876
- Imhaeuser v. BuerkSupreme Court of the United States · 1880
- McCormick v. TalcottSupreme Court of the United States · 1858
- Gill v. WellsSupreme Court of the United States · 1874
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- Cline Electric Mfg. Co. v. KohlerCourt of Appeals for the Seventh Circuit · 1928
- Pennington Engineering Co. v. Houde Engineering Corp.Court of Appeals for the Second Circuit · 1943
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