Patent GB500344A successfully refreshed from Google Patents.
GB500344A
Expired / Lapsed
GB
⏱️ 0.0 years remaining
Improvements in and relating to dry surface-contact electric rectifiers
Assignee: British Thomson Houston Co Ltd
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Filing: 1938-09-21
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Granted: —
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Expires: 1958-09-21
Abstract
Abstract 500,344. Asymmetrically conducting resistances. BRITISH THOMSON-HOUSTON CO., Ltd. Sept. 21, 1938, No. 27540. Convention date, Sept. 22, 1937. [Class 37] In an electric valve of the dry rectifier type a control grid 3 is embedded in the semiconductor layer 2 and is coated with an insulating layer 4. The grid 3 may be of aluminium and the insulator an oxide film or of silver with a coating of quartz vaporized on it.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
GB
Data Source
google_patents
Last Synchronized
2026-10-22 20:44
CPC Classifications
H; H10; H10D; H10D10/00; H10D48/00; H10D48/01; H10D48/04; H10D64/00; H10D99/00; H10N; H10N70/00
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