US3141141A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electronically tunable solid state oscillator
Assignee: AT&T Inc
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Filing: 1961-12-29
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Granted: 1964-07-14
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Expires: 1981-12-29
Abstract
No abstract record available.
Inventors
- 👤 William M Sharpless
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 04:08
CPC Classifications
H; H03; H03B; H03B7/00; H03B7/12; H03B7/14; H03B7/143
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
82 words
IN COMBINATION, A SECTION OF CONDUCTIVELY BOUNDED WAVE GUIDE, A CONDUCTIVE SHORTING MEMBER POSITIONED ACROSS ONE END OF SAID SECTION, MEANS FOR GENERATING ELECTRICAL OSCILLATIONS POSITIONED TRANSVERSELY ACROSS SAID GUIDE IN A PLANE PARALLEL TO AND SPACED AWAY FROM SAID SHORTING MEMBER, SAID MEANS INCLUDING A NEGATIVE RESISTANCE DIODE IN A RESONANT ENVIRONMENT, AND MEANS FOR CONTROLLING THE FREQUENCY OF SAID ELECTRICAL OSCILLATIONS, SAID LAST RECITED MEANS INCLUDING A VARACTOR DIODE POSITIONED IN DIRECT ENERGY COUPLING RELATIONSHIP WITH SAID NEGATIVE RESISTANCE DIODE.
References Cited (Backward Citations)
US3039064A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-07-14 | 1968-01-13 | 1968-07-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-07-14 | 1972-01-13 | 1972-07-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-07-14 | 1976-01-13 | 1976-07-14 | $7700.00 | Window Closed / Lapsed |