US2949161A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reversible disc plow and rear wheel system
Assignee: Case LLC
•
Filing: 1955-08-31
•
Granted: 1960-08-16
•
Expires: 1975-08-31
Abstract
No abstract record available.
Inventors
- 👤 Donald J Campbell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 19:55
CPC Classifications
A; A01; A01B; A01B5/00; A01B5/10; A01B5/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2635522A
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Cited
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US2765723A
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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) | 1963-08-16 | 1964-02-15 | 1964-08-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-08-16 | 1968-02-15 | 1968-08-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-08-16 | 1972-02-15 | 1972-08-16 | $7700.00 | Window Closed / Lapsed |