Johnson Co. v. Pennsylvania Steel Co.
U.S. Circuit Court for the District of Eastern Pennsylvania
This was a suit iu equity by the Johnson Company against the Pennsylvania Steel Company for infringement of a patent.
1Opinion of the Court
DALLAS, Circuit Judge.
This is a suit upon letters patent No. 367,746, dated August 2, 1887, granted to- Edward B. Entwistle, for “girder slot rail crossing.” It contains two claims, and the bill involves both of them; but upon the hearing the complainant, *157without making any general admission with respect to the first claim, stated that this case would he pressed only as to the second claim, which is as follows:
(2.) A slot rail and girder rail crossing, consisting of main girder guard rails and slot rails, secured together at the proper angle, and with the guard rails overlapping (lie heads oh…
2Cases cited1 opinion
- Atlantic Works v. BradySupreme Court of the United States · 1883
3Cited by2 opinions
- Johnson Co. v. Pennsylvania Steel Co.U.S. Circuit Court for the District of Eastern Pennsylvania · 1895
- McClave-Brooks Co. v. M. H. Treadwell Co.District Court, M.D. Pennsylvania · 1914