Legal Opinion
Smith v. Pittsburgh Gas Co.
U.S. Circuit Court for the District of Western Pennsylvania
Decided April 19, 1890PublishedCited by 3 opinions
In Equity.
1Opinion of the CourtAcheson, J.
The bill of complaint charges the defendant with the infringement of two letters patent granted to Boland H. Smith, — one dated November 17, 1885, and numbered 380,747, for a “process of producing illuminating gas;” and the other dated May 4, 1886, and numbered 341,354, issued upon an application made after the grant of the former patent, for a “process of manufacturing gas.” But the witnesses on both sides agree that the two patents cover substantially the same process, and as this, undoubtedly, is the fact, in treating the case, attention need only be given to the specification and claim of…
2Cases cited5 opinions
- Shepard v. CarriganSupreme Court of the United States · 1886
- Sargent v. Hall Safe & Lock Co.Supreme Court of the United States · 1885
- Peters v. Active Manufacturing Co.Supreme Court of the United States · 1889
- Sutter v. RobinsonSupreme Court of the United States · 1886
- Union Metallic Cartridge Co. v. United States Cartridge Co.Supreme Court of the United States · 1884
3Cited by3 opinions
- Stewart v. Cybur Lumber Co.Mississippi Supreme Court · 1916
- Atlantic Dynamite Co. v. Climax Powder Manuf'g Co.U.S. Circuit Court for the District of Western Pennsylvania · 1895
- Kennedy v. Solar Refining Co.U.S. Circuit Court for the District of Northern Ohio · 1895