US2760323A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Disk harrow
Assignee: Individual
•
Filing: 1951-01-25
•
Granted: 1956-08-28
•
Expires: 1971-01-25
Abstract
No abstract record available.
Inventors
- 👤 Hugh E Cooper
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 20:38
CPC Classifications
A; A01; A01B; A01B21/00; A01B21/08; A01B21/083; Y; Y02; Y02A; Y02A40/00; Y02A40/10; Y02A40/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US402789A
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US1220475A
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US1549592A
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US1545895A
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US1762633A
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US1884273A
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US2227762A
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US2320742A
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US2458091A
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US2469622A
Cited
US2623341A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-08-28 | 1960-02-27 | 1960-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-08-28 | 1964-02-27 | 1964-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-08-28 | 1968-02-27 | 1968-08-28 | $7700.00 | Window Closed / Lapsed |