Patent US2731293A successfully refreshed from Google Patents.
US2731293A
Expired / Lapsed
US
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Dump trucks
Assignee: Individual
•
Filing: 1951-06-18
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Granted: 1956-01-17
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Expires: 1971-06-18
Abstract
No abstract record available.
Inventors
- 👤 Archibald D L Hutchinson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 14:00
CPC Classifications
B; B60; B60P; B60P1/00; B60P1/04; B60P1/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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Cited
FR788966A
Cited
GB476402A
Cited
US2326594A
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US2510814A
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US2635004A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-01-16 | 1959-07-18 | 1960-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-01-16 | 1963-07-18 | 1964-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-01-16 | 1967-07-18 | 1968-01-17 | $7700.00 | Window Closed / Lapsed |