Patent US3456899A successfully refreshed from Google Patents.
US3456899A
Expired / Lapsed
US
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Winch assembly
Assignee: HUGH J BAKER AND Co
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Filing: 1967-08-28
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Granted: 1969-07-22
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Expires: 1987-08-28
Abstract
No abstract record available.
Inventors
- 👤 James R Smith
- 👤 Robert C Herrell
- 👤 James B Burch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:39
CPC Classifications
B; B66; B66D; B66D1/00; B66D1/28; B66D1/36; B66D1/39
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
FR1126871A
Cited
GB836412A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-07-21 | 1973-01-20 | 1973-07-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-07-21 | 1977-01-20 | 1977-07-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-07-21 | 1981-01-20 | 1981-07-22 | $7700.00 | Window Closed / Lapsed |