Patent US3519247A successfully refreshed from Google Patents.
US3519247A
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US
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Freewheel final drive assembly
Assignee: Gearmatic Co Ltd
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Filing: 1968-03-25
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Granted: 1970-07-07
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Expires: 1988-03-25
Abstract
No abstract record available.
Inventors
- 👤 Sommerville G Christison
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:24
CPC Classifications
B; B66; B66D; B66D5/00; B66D5/02; B66D5/12; B66D2700/00; B66D2700/03; B66D2700/07; F; F16; F16D; F16D2121/00; F16D2121/02; F16D2121/12
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) | 1973-07-06 | 1974-01-05 | 1974-07-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-07-06 | 1978-01-05 | 1978-07-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-07-06 | 1982-01-05 | 1982-07-07 | $7700.00 | Window Closed / Lapsed |