US2716556A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Leveling control for agricultural machines
Assignee: Individual
•
Filing: 1954-06-23
•
Granted: 1955-08-30
•
Expires: 1974-06-23
Abstract
No abstract record available.
Inventors
- 👤 Arthur E Williams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 08:20
CPC Classifications
F; F16; F16F; F16F1/00; F16F1/36; F16F1/38; A; A01; A01D; A01D75/00; A01D75/28; A01D75/285
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2397711A
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US2564202A
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US2576816A
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US2572910A
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US2583250A
Cited
DE818734C
Cited
US2623758A
Cited
US2684254A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-08-29 | 1959-02-28 | 1959-08-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-08-29 | 1963-02-28 | 1963-08-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-08-29 | 1967-02-28 | 1967-08-30 | $7700.00 | Window Closed / Lapsed |