Legal Opinion
Marconi Wireless Telegraph Co. of America v. De Forest Radio Telephone & Telegraph Co.
District Court, S.D. New York
Decided July 7, 1919PublishedCited by 4 opinions
In Equity. Suit by Marconi Wireless Telegraph Company of America against De Forest Radio Telephone & Telegraph Company.
1Opinion of the Court
MAYER, District Judge.
[1] The Fleming patent, No. 803,684, so far as concerned a detector for radio waves, was fully discussed in Marconi v. De Forest (D. C.) 236 Fed. 942, affirmed 243 Fed. 560, 156 C. C. A. 258. The effect of the decision supra of this court, as affirmed by the Circuit Court of Appeals, supra, was to accord to Fleming’s invention a high place in the art.
*394Eight or nine years after the date of the Fleming patent — the exact dates are unimportant — Armstrong, Hogan, Waterman, Weagant, and probably other experts in the radio art, while using these devices as radio wave…
2Cases cited4 opinions
- Dolbear v. American Bell Telephone CompanySupreme Court of the United States · 1888
- Western Electric Co. v. LaRueSupreme Court of the United States · 1891
- Marconi Wireless Telegraph Co. v. De Forest Radio Telephone & Telegraph Co.Court of Appeals for the Second Circuit · 1917
- Marconi Wireless Telegraph Co. of America v. De Forest Radio Telephone & Telegraph Co.District Court, S.D. New York · 1916
3Cited by4 opinions
- Marconi Wireless Telegraph Co. of America v. United StatesUnited States Court of Claims · 1935
- Kintner v. Atlantic Communication Co.District Court, S.D. New York · 1921
- Hartford-Empire Co. v. Demuth Glass Works, Inc.District Court, E.D. New York · 1937
- Kintner v. Atlantic Communication Co.District Court, S.D. New York · 1921