US3408798A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Means for automatically leveling a vehicle
Assignee: SLOPE TRACTOR Inc
•
Filing: 1967-06-13
•
Granted: 1968-11-05
•
Expires: 1987-06-13
Abstract
No abstract record available.
Inventors
- 👤 Ralph D Hale
- 👤 Ryron L Morris
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:13
CPC Classifications
A; A01; A01D; A01D75/00; A01D75/28; Y; Y10; Y10S; Y10S56/00; Y10S56/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2622894A
Cited
US2821059A
Cited
US2920636A
Cited
US2949004A
Cited
US3160221A
Cited
US3199276A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-11-05 | 1972-05-06 | 1972-11-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-11-05 | 1976-05-06 | 1976-11-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-11-05 | 1980-05-06 | 1980-11-05 | $7700.00 | Window Closed / Lapsed |