US2902979A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Level control system for tractor-mounted tool members
Assignee: GURRIES Manufacturing CO
•
Filing: 1956-11-13
•
Granted: 1959-09-08
•
Expires: 1976-11-13
Abstract
No abstract record available.
Inventors
- 👤 Raymond A Gurries
- 👤 Curlett John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 17:58
CPC Classifications
E; E02; E02F; E02F3/00; E02F3/04; E02F3/76; E02F3/80; E02F3/84; E02F3/844
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2278081A
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US2583250A
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US2654349A
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US2799250A
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US2763164A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-09-07 | 1963-03-09 | 1963-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-09-07 | 1967-03-09 | 1967-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-09-07 | 1971-03-09 | 1971-09-08 | $7700.00 | Window Closed / Lapsed |