Patent US3020992A successfully refreshed from Google Patents.
US3020992A
Expired / Lapsed
US
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Modulating power-transmission unit
Assignee: Young Radiator Co
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Filing: 1959-06-08
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Granted: 1962-02-13
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Expires: 1979-06-08
Abstract
No abstract record available.
Inventors
- 👤 Earl G Gunn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:28
CPC Classifications
F; F16; F16D; F16D31/00; F16D31/04; F01; F01P; F01P7/00; F01P7/02; F01P7/04; F01P7/042; F16H; F16H61/00; F16H61/02; F16H2718/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1317415A
Cited
US1418126A
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US1820035A
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US2172975A
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US2382114A
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US2396149A
Cited
US2637308A
Cited
US2902127A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-02-12 | 1965-08-14 | 1966-02-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-02-12 | 1969-08-14 | 1970-02-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-02-12 | 1973-08-14 | 1974-02-13 | $7700.00 | Window Closed / Lapsed |