US3221276A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Microwave variable reactance device operating about a resonant condition
Assignee: General Electric Co
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Filing: 1961-04-27
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Granted: 1965-11-30
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Expires: 1981-04-27
Abstract
No abstract record available.
Inventors
- 👤 Stern Ernest
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:55
CPC Classifications
H; H01; H01P; H01P1/00; H01P1/10; H01P1/11
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
101 words
A MICROWAVE VARIABLE REACTANCE DEVICE COMPRISING: A WAVEGUIDE SECTION HAVING A FIRST END FOR CONNECTION TO A WAVEGUIDE LINE; MEANS REFLECTIVELY TERMINATING THE SECOND END OF SAID WAVEGUIDE SECTION; ELECTRICALLY CONTROLLED REACTIVE MEANS WITHIN SAID WAVEGUIDE SECTION; AND CONTROL MEANS ASSOCIATED WITH SAID ELECTRICALLY CONTROLLED REACTIVE MEANS TO CONTROL THIS REACTANCE, WHICH CONTROL MEANS WHEN SET TO ITS MEDIAN VALUE ESTABLISHES A MEAN ELECTRICAL LENGTH FOR SAID WAVEGUIDE SECTION WHICH IS NEAR AN INTEGRAL MULTIPLE OF A QUARTER WAVELENGTH AND THEREBY PRODUCE A LARGE VARIATION IN THE REACTANCE PRESENTED BY SAID WAVEGUIDE SECTION TO SAID WAVES PROPAGATING FROM SAID WAVEGUIDE LINE.
Claim 2
Dependent Claim
101 words
A MICROWAVE VARIABLE REACTANCE DEVICE COMPRISING: A WAVEGUIDE SECTION HAVING A FIRST END FOR CONNECTION TO A WAVEGUIDE LINE; MEANS REFLECTIVELY TERMINATING THE SECOND END OF SAID WAVEGUIDE SECTION; ELECTRICALLY CONTROLLED REACTIVE MEANS WITHIN SAID WAVEGUIDE SECTION; AND CONTROL MEANS ASSOCIATED WITH SAID ELECTRICALLY CONTROLLED REACTIVE MEANS TO CONTROL THIS REACTANCE, WHICH CONTROL MEANS WHEN SET TO ITS MEDIAN VALUE ESTABLISHES A MEAN ELECTRICAL LENGTH FOR SAID WAVEGUIDE SECTION WHICH IS NEAR AN INTEGRAL MULTIPLE OF A QUARTER WAVELENGTH AND THEREBY PRODUCE A LARGE VARIATION IN THE REACTANCE PRESENTED BY SAID WAVEGUIDE SECTION TO SAID WAVES PROPAGATING FROM SAID WAVEGUIDE LINE.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-11-29 | 1969-05-31 | 1969-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-29 | 1973-05-31 | 1973-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-29 | 1977-05-31 | 1977-11-30 | $7700.00 | Window Closed / Lapsed |