Patent US3374686A successfully refreshed from Google Patents.
US3374686A
Expired / Lapsed
US
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Drive-tensioning apparatus
Assignee: Brewer Machine & Gear Co
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Filing: 1965-12-01
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Granted: 1968-03-26
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Expires: 1985-12-01
Abstract
No abstract record available.
Inventors
- 👤 Carl T Brewer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 08:51
CPC Classifications
F; F16; F16H; F16H7/00; F16H7/08; F16H7/10; F16H7/12; F16H7/1254; F16H7/1281; F16H7/129; F16H2007/0802; F16H2007/0806
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1690145A
Cited
US1744486A
Cited
US2074078A
Cited
US3004443A
Cited
US3071980A
Cited
US3266047A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-03-26 | 1971-09-25 | 1972-03-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-03-26 | 1975-09-25 | 1976-03-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-03-26 | 1979-09-25 | 1980-03-26 | $7700.00 | Window Closed / Lapsed |