Legal Opinion
Langan v. Warren Axe & Tool Co.
U.S. Circuit Court for the District of Western Pennsylvania
Decided June 25, 1910No. 11PublishedCited by 1 opinion
In Equity. Suit by David H. Langan against the Warren Axe & Tool Company.
1Opinion of the Court
YOUNG, District Judge.
This case comes before us for final hearing upon bill, answer, replication, and proofs. The plaintiff charges that the defendant has infringed his patent No. 595,181, for an improvement in grab hooks used in skidding logs.
An examination of the patent in controversy shows that the following claim in the application was allowed:
“The combination with a pair of grab hooks, each consisting of a shank having an eye at its front end and at its rear end having a projected, perforated ear, immediately in front of which latter is located an angularly disposed driving tooth, said…
2Cases cited2 opinions
- Morgan Envelope Co. v. Albany Perforated Wrapping Paper Co.Supreme Court of the United States · 1894
- Richards v. Chase Elevator Co.Supreme Court of the United States · 1895
3Cited by1 opinion
- Langan v. Warren Axe & Tool Co.Court of Appeals for the Third Circuit · 1911