Keystone Bridge Co. v. Phoenix Iron Co.
Supreme Court of the United States
Appeal from the Circuit Court of tbe United States-foie the Eastern District of Pennsylvania. The facts are stated in the opinion of the court.
1Opinion of the CourtJustice Bradley
The. appeal in this case is brought to review -the decree of the Circuit Court dismissing the bill of complaint, which charges an infringement of two certain: patents belonging to the Keystone Bridge Company. These patents were for improvements: in iron truss bridges. The first was granted to. J. H. Linville and his assignee J. I. Piper, Jan. 14, 1862; the second, to the same parties, Oct. 81, 1865. The particular claims upon which the contest arises before us are the first claim in the former patent, and the third in the latter. Both of these claims relate to the lower chords of the truss,…
2Cases cited1 opinion
- Merrill v. YeomansSupreme Court of the United States · 1877
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