US2958384A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tractor-implement combination with weight transfer adjustment
Assignee: DAVID BROWN TRACTORS (ENGINEERING) Ltd
•
Filing: 1954-05-24
•
Granted: 1960-11-01
•
Expires: 1974-05-24
Abstract
No abstract record available.
Inventors
- 👤 Charles H Hull
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:40
CPC Classifications
A; A01; A01B; A01B63/00; A01B63/02; A01B63/10; A01B63/111; A01B63/114; A01B63/1145; Y; Y10; Y10T; Y10T74/00; Y10T74/20; Y10T74/20012; Y10T74/20201
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2243364A
Cited
US2538143A
Cited
GB624146A
Cited
US2627796A
Cited
US2667745A
Cited
US2611307A
Cited
US2722873A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-11-01 | 1964-05-02 | 1964-11-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-11-01 | 1968-05-02 | 1968-11-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-11-01 | 1972-05-02 | 1972-11-01 | $7700.00 | Window Closed / Lapsed |