Patent US2474986A successfully refreshed from Google Patents.
US2474986A
Expired / Lapsed
US
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Tractor-trailer road vehicle coupling
Assignee: Individual
•
Filing: 1946-06-25
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Granted: 1949-07-05
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Expires: 1966-06-25
Abstract
No abstract record available.
Inventors
- 👤 Rivers Thornton Hartley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 20:29
CPC Classifications
B; B60; B60D; B60D1/00; B60D1/24; B60D1/42; B60D1/44
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US993597A
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US1021446A
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US1205351A
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US1287459A
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GB235855A
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US1627998A
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US1830874A
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US2144295A
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US2197248A
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US2384363A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-07-04 | 1953-01-03 | 1953-07-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-07-04 | 1957-01-03 | 1957-07-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-07-04 | 1961-01-03 | 1961-07-05 | $7700.00 | Window Closed / Lapsed |