Legal Opinion
Zenith Radio Corporation v. David L. Ladd, Commissioner of Patents
Court of Appeals for the D.C. Circuit
Decided November 8, 1962No. 16820PublishedCited by 24 opinions
1Opinion of the Court
WASHINGTON, Circuit Judge.
This is an appeal from a judgment of the District Court, entered in a suit brought under Section 145 of Title 35 of the United States Code (1958), refusing to grant relief from a determination of the Patent Office denying reissue of Patent No. 2,870,521, originally issued to Norman Rudnick.
Appellant, Zenith Radio Corporation, the plaintiff below, is assignee of the patent, which covers a method of adjusting the resonant frequency of a longitudinal-mode transducer. A transducer is a device that changes energy from one form to another. It is of the “longitudinal-mode”…
2Cases cited9 opinions
- Butterworth v. United States Ex Rel. HoeSupreme Court of the United States · 1884
- Schriber-Schroth Co. v. Cleveland Trust Co.Supreme Court of the United States · 1938
- Abbott v. CoeCourt of Appeals for the D.C. Circuit · 1939
- Esso Standard Oil Company v. Sun Oil CompanyCourt of Appeals for the D.C. Circuit · 1956
- Hoover Co. v. CoeSupreme Court of the United States · 1945
4 more not listed; retrieve them via the Exa API.
3Cited by24 opinions
- California Research Corporation v. David L. Ladd, Commissioner of PatentsCourt of Appeals for the D.C. Circuit · 1966
- Edwid E. Hays and Wallace & Tiernan, Inc. v. Edward J. Brenner, Commissioner of PatentsCourt of Appeals for the D.C. Circuit · 1966
- Edwin L. Reynolds, Acting Commissioner of Patents v. Elie P. AghnidesCourt of Appeals for the D.C. Circuit · 1966
- Fred B. Stieg v. Commissioner of PatentsCourt of Appeals for the D.C. Circuit · 1965
- Johns-Manville Corporation v. David L. Ladd, Commissioner of PatentsCourt of Appeals for the D.C. Circuit · 1964
19 more not listed; retrieve them via the Exa API.