Patent US3532008A successfully refreshed from Google Patents.
US3532008A
Expired / Lapsed
US
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Planetary propeller transmission with slip couplings
Assignee: WILLIAM G FANSTONE
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Filing: 1968-08-23
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Granted: 1970-10-06
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Expires: 1988-08-23
Abstract
No abstract record available.
Inventors
- 👤 William G Fanstone
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:35
CPC Classifications
B; B63; B63H; B63H20/00; B63H20/14; B63H20/20; B63H23/00; B63H23/02; B63H2023/0258
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) | 1973-10-05 | 1974-04-06 | 1974-10-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-10-05 | 1978-04-06 | 1978-10-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-10-05 | 1982-04-06 | 1982-10-06 | $7700.00 | Window Closed / Lapsed |