Ashcroft v. Railroad Co.
Supreme Court of the United States
Appeal from the Circuit Court of the United States for the District of Massachusetts. English letters-patent No. 1830, dated July 21, 1863, and sealed Jan. 19, 1864, were granted to William Naylor, of England, for improvements in safety-valves and in apparatus connected therewith.
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Appeal from the Circuit Court of the United States for the District of Massachusetts. English letters-patent No. 1830, dated July 21, 1863, and sealed Jan. 19, 1864, were granted to William Naylor, of England, for improvements in safety-valves and in apparatus connected therewith. The specification describes his invention as consisting, “ when using a spring for resisting the valve from opening, in the employment of a lever of the first order, one end resting by a suitable pin upon the safety-valve, and the other end of the lever resting upon the spring, the end resting upon the spring being…
1Opinion of the CourtJustice Clifford
Causes of action arising under the patent laws are originally cognizable, as well in equity as at law, by the circuit courts, or the district courts having the power and jurisdiction of a circuit court, subject to the condition that the final judgment or decree in such a case may be removed here for re-examination.
Improvements were made by William Naylor in steam safety-valves, for wbicb, on the 16th of October, 1866, he obtained letters-patent of the United States; and it appears that he subsequently assigned the patent to the complainant, and that the complainant, as such assignee,…
2Cited by3 opinions
- Consolidated Safety-Valve Co. v. Crosby Steam Gauge & Valve Co.Supreme Court of the United States · 1885
- Ashcroft v. Boston & L. R.U.S. Circuit Court for the District of Massachusetts · 1874
- Consolidated Safety-Valve Co. v. Crosby Steam-Gauge & Valve Co.U.S. Circuit Court for the District of Massachusetts · 1881