Bisight Co. v. Onepiece Bifocal Lens Co.
Court of Appeals for the Fourth Circuit
Cross-Appeals from the District Court of the United States for the District of Maryland, at Baltimore; John C. Rose, Judge. Suit by the Onepiece Bifocal Dens Company against the Bisight Company and Benjamin Mayer. Decree for complainant (246 Fed. 450), and defendants appeal, with cross-appeal by complainant.
1Opinion of the Court
WOODS, Circuit Judge.
Consideration of the claims, infringements, and defenses set up in these appeals involve very fine distinctions of the application of the patent law to bifocal lenses. Study of the record and arguments satisfies us that the District Judge reached just conclusions as to most of the matters in controversy, and no good end would be attained by a statement of our reasons for approving his conclusions. 246 Fed. 450.
*276[1,2] We think, however, that the District Court was in error in holding invalid claim 1 of the Connor machine patent, No. 836,486. That claim reads as follows:
“Appa…
2Cases cited6 opinions
- Continental Paper Bag Co. v. Eastern Paper Bag Co.Supreme Court of the United States · 1908
- Seymour v. OsborneSupreme Court of the United States · 1871
- Hobbs v. BeachSupreme Court of the United States · 1901
- The Corn-Planter PatentSupreme Court of the United States · 1874
- King Ax Co. v. HubbardCourt of Appeals for the Sixth Circuit · 1899
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- General Electric Co. v. De Forest Radio Co.District Court, D. Delaware · 1927
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