US2883777A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lateral level control mechanism for road graders
Assignee: GURRIES Manufacturing CO
•
Filing: 1957-09-20
•
Granted: 1959-04-28
•
Expires: 1977-09-20
Abstract
No abstract record available.
Inventors
- 👤 Raymond A Gurries
- 👤 Curlett John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 04:40
CPC Classifications
E; E02; E02F; E02F3/00; E02F3/04; E02F3/76; E02F3/80; E02F3/84; E02F3/841; E02F3/7663; E02F3/7672
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2734293A
Cited
US1201648A
Cited
FR975601A
Cited
US2520266A
Cited
US2647758A
Cited
US2792651A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-04-27 | 1962-10-27 | 1963-04-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-04-27 | 1966-10-27 | 1967-04-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-04-27 | 1970-10-27 | 1971-04-28 | $7700.00 | Window Closed / Lapsed |