Patent US3117547A successfully refreshed from Google Patents.
US3117547A
Expired / Lapsed
US
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Boat
Assignee: Individual
•
Filing: 1962-03-30
•
Granted: 1964-01-14
•
Expires: 1982-03-30
Abstract
No abstract record available.
Inventors
- 👤 Cohen Abe
- 👤 Tchetchet Victor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 22:12
CPC Classifications
B; B63; B63B; B63B1/00; B63B1/16; B63B1/18; B63B1/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1007583A
Cited
US1050517A
Cited
US1075726A
Cited
US1189227A
Cited
FR504085A
Cited
FR665771A
Cited
US2288490A
Cited
FR911574A
Cited
US2947277A
Cited
US3038431A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-01-13 | 1967-07-15 | 1968-01-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-01-13 | 1971-07-15 | 1972-01-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-01-13 | 1975-07-15 | 1976-01-14 | $7700.00 | Window Closed / Lapsed |