Ashcroft v. Boston & L. R.
U.S. Circuit Court for the District of Massachusetts
[In equity. Bill by Edward H. Ashcroft against the Boston & Lowell Railroad Company to restrain the infringement of patent No. 58,962. Bill dismissed. An appeal was subsequently taken to the supreme court, where this decree was affirmed. 97 U. S. 189.]
1Opinion of the Court
SHEPLEY, Circuit Judge.
The bill in this case charges the defendant with infringement of letters-patent of the United States, reissued Nov. 9, 1869, [No. 58,962,] to the complainant, as assignee of William Naylor, of the county of Middlesex, England, for an improvement in steam safety-valves. The answer of the defendant sets up in defence: First, that the reissued letters-patent are not for the same invention described in the original letters-patent. Second, that William Naylor was not the original and first inventor of the improvements specified in said reissued patent, but that the same were…
2Cases cited3 opinions
- Ashcroft v. Railroad Co.Supreme Court of the United States · 1878
- Consolidated Safety-Valve Co. v. Crosby Steam-Gauge & Valve Co.U.S. Circuit Court for the District of Massachusetts · 1881
- Consolidated Safety-Valve Co. v. KunkleUnited States Circuit Court · 1883
3Cited by2 opinions
- Consolidated Safety-Valve Co. v. Crosby Steam Gauge & Valve Co.Supreme Court of the United States · 1885
- Consolidated Safety-Valve Co. v. Crosby Steam-Gauge & Valve Co.U.S. Circuit Court for the District of Massachusetts · 1881