Duff Mfg. Co. v. Norton
U.S. Circuit Court for the District of Massachusetts
This was a suit in equity by the Duff Manufacturing Company against Arthur O. Norton for infringement of certain patents. On final hearing.
1Opinion of the Court
PUTNAM, Circuit Judge.
This cuse relates to alleged infringements of claims 1, 2, and (> of the patent issued to Josiali Barrett on July 11, 1891 (No. 455,999), and of claims 1 and 2 of the patent issued to Mr. Barrett on January 2, 1891 (No. 311,923). Each of the patents purports to relate to improvements in lifting jacks. The earlier patent was under consideration on an application for an ad interim injunction in this case, as shown by our opinion passed down on March 15, 1899. 92 Fed. 921. The lifting jacks to which these patents relate art* those of which the basis is a notched lifting…
2Cases cited7 opinions
- Beach v. HobbsU.S. Circuit Court for the District of Massachusetts · 1897
- Beach v. HobbsCourt of Appeals for the First Circuit · 1899
- Bates v. KeithU.S. Circuit Court for the District of Massachusetts · 1897
- Duff Manuf'g Co. v. ForgieU.S. Circuit Court for the District of Western Pennsylvania · 1897
- Forgie v. Duff Manuf'g Co.Court of Appeals for the Third Circuit · 1897
2 more not listed; retrieve them via the Exa API.
3Cited by1 opinion
- Duff Mfg. Co. v. Kalamazoo Railroad Velocipede & Car Co.U.S. Circuit Court for the District of Western Michigan · 1900