Legal Opinion
De Forest v. Richards
Court of Appeals for the D.C. Circuit
Decided March 1, 1920No. 1286PublishedCited by 1 opinion
Appeal from a Decision of an Assistant Commissioner of Patents. Interference proceeding in the Patent Office between Dee D’e Forest and Wilton D. Richards. From a decision awarding priority to Richards, De Forest appeals.
1Opinion of the Court
ROBB, Associate Justice.
This is an appeal from the decision of an Assistant Commissioner of Patents awarding priority to Richards.
De Eorest, in 1907 and 1908, was granted patents on relays of the gaseous type, known in the art as audions. The invention in issue is an improvement on an audion, and is thus described by the Examiner of Interferences:
“It is an improvement on the so-called ‘audion,’ which comprises a receptacle Lrom which substantially ail gases have been removed, having therein a terminal or electrode adapted to be heated from same external source, and two eold electrodes located…
2Cited by1 opinion
- Roensch v. BillnerCourt of Customs and Patent Appeals · 1954