US3273083A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Frequency responsive device
Assignee: Motorola Solutions Inc
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Filing: 1964-04-14
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Granted: 1966-09-13
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Expires: 1984-04-14
Abstract
No abstract record available.
Inventors
- 👤 Gus C Rose
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:15
CPC Classifications
H; H01; H01P; H01P7/00; H01P7/04
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
159 words
A RESONANT CAVITY DEVICE RESPONSIVE TO APPLIED SIGNALS OF PREDETERMINED FREQUENCIES, INCLUDING IN COMBINATION, A HOLLOW DIE-CAST INTEGRAL CONDUCTING HOUSING HAVING A PLURALITY OF WALLS FORMING A PLURALITY OF CAVITIES THEREIN AND BEING OPEN AT ONE END, A REMOVABLE END PLATE FOR COVERING SAID ONE END OF SAID HOUSING, SAID WALLS OF SAID HOUSING BETWEEN ADJACENT CAVITIES BEING FORMED TO LEAVE A SPACE BETWEEN SAID WALLS AND SAID END PLATE FOR INTERCAVITY COUPLING, A PLURALITY OF CONDUCTIVE MEMBERS EACH EXTENDING INTO A RESPECTIVE ONE OF SAID CAVITIES AND FIXED AT ONE END THEREOF TO SAID END PLATE, AND ADJUSTABLE CAPACITOR MEANS SUPPORTED IN SAID HOUSING AND BEING ADJUSTED TO VARY THE RESONANT FREQUENCY OF EACH OF SAID CAVITIES, AND EACH OF SAID CONDUCTIVE MEMBERS BEING SECURELY SUPPORTED AT ONE END BY SAID END PLATE AND AT THE OTHER END BY SAID CAPACITOR MEANS THEREBY MINIMIZING VARIATIONS IN THE RESONANT FREQUENCY OF SAID CAVITIES CAUSED BY VIBRATION OF SAID HOUSING.
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) | 1969-09-12 | 1970-03-14 | 1970-09-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-12 | 1974-03-14 | 1974-09-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-12 | 1978-03-14 | 1978-09-13 | $7700.00 | Window Closed / Lapsed |