US2644176A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Amphibious boat trailer
Assignee: Individual
•
Filing: 1949-01-27
•
Granted: 1953-07-07
•
Expires: 1969-01-27
Abstract
No abstract record available.
Inventors
- 👤 Carl R Livermon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 01:17
CPC Classifications
B; B60; B60P; B60P3/00; B60P3/06; B60P3/10; B60P3/1033
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1075074A
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GB190010934A
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US801051A
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US1071113A
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US1302489A
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US1636562A
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US1531180A
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US1779887A
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US1785421A
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US2260676A
Cited
US2361951A
Cited
US2448443A
Cited
US2444690A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-07-06 | 1957-01-05 | 1957-07-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-07-06 | 1961-01-05 | 1961-07-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-07-06 | 1965-01-05 | 1965-07-07 | $7700.00 | Window Closed / Lapsed |