Legal Opinion
Johns-Pratt Co. v. Sachs Co.
U.S. Circuit Court for the District of Connecticut
Decided March 12, 1909No. 1,241PublishedCited by 3 opinions
In Equity. On final hearing.
1Opinion of the Court
PRATT, District Judge.
This is the usual patent suit, based on letters patent to Joseph Sachs, No. 660,341, for an improvement in safety fuses. The defense is noninfringement. All the claims are involved, but it is enough to quote the first one:
“(3) A safety fuse comprising a case and a filling of nonconducting* materia, and a fuse strip therein of thin flat metal of extended area, substantially as and for the purposes set forth.”
We must at the beginning settle the principle upon which we shall examine the patent, because of the story surrounding it.
Air. Sachs, the patentee, was employed by…
2Cases cited2 opinions
- Edison Electric Light Co. v. United States Electric Lighting Co.Court of Appeals for the Second Circuit · 1892
- Johns-Pratt Co. v. Sachs Co.U.S. Circuit Court for the District of Connecticut · 1907
3Cited by3 opinions
- Johns-Pratt Co. v. E. H. Freeman Electric Co.District Court, D. New Jersey · 1912
- Johns-Pratt Co. v. SnowDistrict Court, W.D. New York · 1913
- Johns-Pratt Co. v. Economy Fuse & Mfg. Co.District Court, E.D. Pennsylvania · 1914