Patent US3208012A successfully refreshed from Google Patents.
US3208012A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hollow waveguide discharge switching device having a capillary tube extending through the electrodes
Assignee: Westinghouse Electric Corp
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Filing: 1962-02-28
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Granted: 1965-09-21
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Expires: 1982-02-28
Abstract
No abstract record available.
Inventors
- 👤 Gerald I Klein
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 08:46
CPC Classifications
G; G01; G01S; G01S7/00; G01S7/02; G01S7/03; G01S7/034
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
110 words
A MICROWAVE SWITCHING DEVICE COMPRISING A SECTION OF HOLLOW WAVEGUIDE, A PAIR OF ELECTRODES DISPOSED WITHIN SAID WAVEGUIDE IN A FIRST GASEOUS MEDIUM, SAID ELECTRODES DEFINING A DISCHARGE GAP THEREBETWEEN, EACH OF SAID ELECTRODES HAVING A BORE, AN ELECTRODES TUBE POSITIONED WITHIN SAID BORES AND EXTENDING ACROS SAID DISCHARGE GAP, SAID TUBE HAVING AN INSIDE DIAMETER OF LESS THAN 1/10 OF AN INCH, AND A WALL THICKNESS OF .003 TO .030 INCH, SAID TUBE CONTAINING A SECOND GASEOUS MEDIUM WHICH PROVIDES WHEN IONIZED BY RADIO FREQUENCY ENERGY BETWEEN SAID ELECTRODES THE PATH OF LEAST RESISTANCE BETWEEN SAID ELECTRODES, SAID FIRST GASEOUS MEDIUM BEING LESS IONIZABLE THAN SAID SECOND IONIZABLE MEDIUM.
Claim 2
Dependent Claim
110 words
A MICROWAVE SWITCHING DEVICE COMPRISING A SECTION OF HOLLOW WAVEGUIDE, A PAIR OF ELECTRODES DISPOSED WITHIN SAID WAVEGUIDE IN A FIRST GASEOUS MEDIUM, SAID ELECTRODES DEFINING A DISCHARGE GAP THEREBETWEEN, EACH OF SAID ELECTRODES HAVING A BORE, AN ELECTRODES TUBE POSITIONED WITHIN SAID BORES AND EXTENDING ACROS SAID DISCHARGE GAP, SAID TUBE HAVING AN INSIDE DIAMETER OF LESS THAN 1/10 OF AN INCH, AND A WALL THICKNESS OF .003 TO .030 INCH, SAID TUBE CONTAINING A SECOND GASEOUS MEDIUM WHICH PROVIDES WHEN IONIZED BY RADIO FREQUENCY ENERGY BETWEEN SAID ELECTRODES THE PATH OF LEAST RESISTANCE BETWEEN SAID ELECTRODES, SAID FIRST GASEOUS MEDIUM BEING LESS IONIZABLE THAN SAID SECOND IONIZABLE MEDIUM.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-09-20 | 1969-03-22 | 1969-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-20 | 1973-03-22 | 1973-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-20 | 1977-03-22 | 1977-09-21 | $7700.00 | Window Closed / Lapsed |