Legal Opinion
Langmuir v. De Forest
District Court, D. Delaware
Decided March 22, 1927No. 562PublishedCited by 4 opinions
1Opinion of the Court
MORRIS, District Judge.
The subject-matter of this suit, brought under R. S. § 4915 (Comp. St. § 9460), by Irving Langmuir and General Electric Company against Lee De Forest, De Forest Radio Telephone & Telegraph Company, and American Telephone & Telegraph Company, is that defined in the counts constituting the issue in interferences Nos. 41,224 and 41,225 in the Patent Office. As a result of the decision of the Court of Appeals of the District of Columbia (298 Fed. 1006), counts 1, 2, 3, 4, 5, 7, and 8 of No. 41,224 (originally a three-party interference, but, by failing to appeal from an…
2Cases cited9 opinions
- Western Electric Co. v. LaRueSupreme Court of the United States · 1891
- Gandy v. MarbleSupreme Court of the United States · 1887
- Frederick R. Stearns & Co. v. RussellCourt of Appeals for the Sixth Circuit · 1898
- Stow v. ChicagoSupreme Court of the United States · 1882
- W. W. Sly Mfg. Co. v. Russell & Co.Court of Appeals for the Sixth Circuit · 1911
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3Cited by4 opinions
- Westinghouse Electric & Mfg. Co. v. De Forest Radio Telephone & Telegraph Co.Court of Appeals for the Third Circuit · 1927
- BBC Group NV LLC v. Island Life Restaurant Group LLCDistrict Court, W.D. Washington · 2019
- Leeds & Northrup Co. v. Doble Engineering Co.District Court, D. Massachusetts · 1941
- Radio Corp. of America v. Collins Radio Co.District Court, D. Delaware · 1937