Patent US3409153A successfully refreshed from Google Patents.
US3409153A
Expired / Lapsed
US
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Boat hoist
Assignee: Marine Travelift Inc
•
Filing: 1966-12-22
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Granted: 1968-11-05
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Expires: 1986-12-22
Abstract
No abstract record available.
Inventors
- 👤 Richard A Stearn
- 👤 Petersen Arnold
- 👤 Lenius Norbert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 14:58
CPC Classifications
B; B63; B63C; B63C3/00; B63C3/12; B60; B60P; B60P3/00; B60P3/06; B60P3/10; B60P3/1091; B63C3/06
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) | 1971-11-05 | 1972-05-06 | 1972-11-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-11-05 | 1976-05-06 | 1976-11-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-11-05 | 1980-05-06 | 1980-11-05 | $7700.00 | Window Closed / Lapsed |