Patent US2672993A successfully refreshed from Google Patents.
US2672993A
Expired / Lapsed
US
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Power-driven rolls for lumber trailers
Assignee: Individual
•
Filing: 1951-07-12
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Granted: 1954-03-23
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Expires: 1971-07-12
Abstract
No abstract record available.
Inventors
- 👤 Lee Glen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 12:21
CPC Classifications
B; B60; B60P; B60P1/00; B60P1/52
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US151253A
Cited
US775997A
Cited
US1041319A
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US1142672A
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US1165719A
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US1204049A
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US1597094A
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US2087846A
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US2156438A
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US2451620A
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US2606678A
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US2518293A
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US2604219A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-03-22 | 1957-09-21 | 1958-03-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-03-22 | 1961-09-21 | 1962-03-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-03-22 | 1965-09-21 | 1966-03-23 | $7700.00 | Window Closed / Lapsed |