US2944830A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Four wheel steering mechanism for a mine car
Assignee: Individual
•
Filing: 1958-05-15
•
Granted: 1960-07-12
•
Expires: 1978-05-15
Abstract
No abstract record available.
Inventors
- 👤 Osborne Charles Vernon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:58
CPC Classifications
B; B62; B62D; B62D7/00; B62D7/06; B62D7/14; B62D7/142; B60; B60K; B60K1/00; B60K1/02; B60K17/00; B60K17/30; B60K17/306; B60L; B60L15/00; B60L15/20; B60L15/2036; B60L2220/00; B60L2220/40; B60L2220/42; B60L2240/00; B60L2240/10; B60L2240/24; B60L2260/00; B60L2260/20; B60L2260/28; Y; Y02; Y02T; Y02T10/00; Y02T10/60; Y02T10/64; Y02T10/72
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1308289A
Cited
US894060A
Cited
US1171941A
Cited
US2412755A
Cited
US2461116A
Cited
US2812191A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-07-12 | 1964-01-11 | 1964-07-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-07-12 | 1968-01-11 | 1968-07-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-07-12 | 1972-01-11 | 1972-07-12 | $7700.00 | Window Closed / Lapsed |