Patent US2496474A successfully refreshed from Google Patents.
US2496474A
Expired / Lapsed
US
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Vertically swingable extension for tractor drawbars
Assignee: International Motors LLC
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Filing: 1948-09-23
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Granted: 1950-02-07
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Expires: 1968-09-23
Abstract
No abstract record available.
Inventors
- 👤 Benjamin M Hyman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 03:25
CPC Classifications
B; B60; B60D; B60D1/00; B60D1/24; B60D1/42; B60D1/46; B60D1/465; B60D1/36
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2320168A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-02-06 | 1953-08-08 | 1954-02-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-02-06 | 1957-08-08 | 1958-02-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-02-06 | 1961-08-08 | 1962-02-07 | $7700.00 | Window Closed / Lapsed |