US2942677A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tractor with driven wheels individually powered and mounted on transmission housingsconstituting part of the frame
Assignee: Individual
•
Filing: 1957-09-23
•
Granted: 1960-06-28
•
Expires: 1977-09-23
Abstract
No abstract record available.
Inventors
- 👤 Harold P Gray
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:04
CPC Classifications
B; B62; B62D; B62D61/00; B62D61/06; B62D61/08; B60; B60K; B60K17/00; B60K17/04; B60K17/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US840407A
Cited
US1052829A
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US1609044A
Cited
US2272603A
Cited
US2325396A
Cited
US2586273A
Cited
US2796140A
Cited
FR1097127A
Cited
US2706008A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-06-28 | 1963-12-28 | 1964-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-06-28 | 1967-12-28 | 1968-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-06-28 | 1971-12-28 | 1972-06-28 | $7700.00 | Window Closed / Lapsed |