Patent US3734795A successfully refreshed from Google Patents.
US3517352A
Expired / Lapsed
US
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Voltage variable capacitance tuned circuit having diode means coupled to each terminal of the applied input tuning voltage
Assignee: Plessey Overseas Ltd
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Filing: 1968-08-01
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Granted: 1970-06-23
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Expires: 1988-08-01
Abstract
No abstract record available.
Inventors
- 👤 Richard S Marshall
- 👤 Allan S Summers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 13:12
CPC Classifications
H; H03; H03J; H03J3/00; H03J3/02; H03J3/16; H03J3/18; H03J3/185; H03J3/24
Claims Analysis
Total Claims: 0
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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) | 1973-06-22 | 1973-12-22 | 1974-06-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-06-22 | 1977-12-22 | 1978-06-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-06-22 | 1981-12-22 | 1982-06-23 | $7700.00 | Window Closed / Lapsed |