Legal Opinion
Hall Signal Co. v. General Ry. Signal Co.
U.S. Circuit Court for the District of Western New York
Decided November 4, 1908No. 284PublishedCited by 2 opinions
In Equity. On final hearing.
1Opinion of the Court
HAZEL, District Judge.
This action was brought to restrain the infringement of United States letters patent No. 470,813, for improve*63ment in electric railway signal apparatus, issued March 15, 1892, to A. J. Wilson, inventor, and by him assigned to the complainant. A diagram representing block sections in series on a line of railway, in-strumentalities consisting of batteries, relays, rail and signal circuits showing the arrangement of the apparatus, accompanies and illustrates the patent, and as it is thought indispensable to a complete understanding of the invention it is herewith reproduced.
*64T…
2Cases cited8 opinions
- The Barbed Wire PatentSupreme Court of the United States · 1892
- Loom Co. v. HigginsSupreme Court of the United States · 1882
- Cimiotti Unhairing Co. v. American Fur Refining Co.Supreme Court of the United States · 1905
- Computing Scale Co. of America v. Automatic Scale Co.Supreme Court of the United States · 1907
- Electric Railroad Signal Co. v. Hall Railway Signal Co.Supreme Court of the United States · 1885
3 more not listed; retrieve them via the Exa API.
3Cited by2 opinions
- Jensen-Salsbery Laboratories, Inc. v. Salt Lake Stamp Co.Court of Appeals for the Eighth Circuit · 1928
- Bush & Lane Piano Co. v. Becker Bros.Court of Appeals for the Second Circuit · 1916