Patent US4926364A successfully refreshed from Google Patents.
US2551040A
Expired / Lapsed
US
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Wheeled attachment for transporting boats
Assignee: Individual
•
Filing: 1946-12-06
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Granted: 1951-05-01
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Expires: 1966-12-06
Abstract
No abstract record available.
Inventors
- 👤 Frederick T Newell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 00:54
CPC Classifications
B; B63; B63C; B63C13/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1109520A
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US1374372A
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US1691633A
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US1779887A
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US2040339A
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US2171889A
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US2219254A
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US2277302A
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US2424641A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-04-30 | 1954-10-30 | 1955-05-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-04-30 | 1958-10-30 | 1959-05-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-04-30 | 1962-10-30 | 1963-05-01 | $7700.00 | Window Closed / Lapsed |