Patent US2448443A successfully refreshed from Google Patents.
US2448443A
Expired / Lapsed
US
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Boat trailer and the like
Assignee: SPORTING SPECIALTIES Co
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Filing: 1945-10-18
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Granted: 1948-08-31
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Expires: 1965-10-18
Abstract
No abstract record available.
Inventors
- 👤 Krake Foster
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 18:39
CPC Classifications
B; B60; B60P; B60P3/00; B60P3/06; B60P3/10; B60P3/1091
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1180327A
Cited
US1366771A
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US1531180A
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FR758279A
Cited
GB470114A
Cited
US2218510A
Cited
US2260676A
Cited
US2296611A
Cited
US2375754A
Cited
US2388870A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-08-31 | 1952-03-01 | 1952-08-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-08-31 | 1956-03-01 | 1956-08-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-08-31 | 1960-03-01 | 1960-08-31 | $7700.00 | Window Closed / Lapsed |