US2457151A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Disk plow
Assignee: Individual
•
Filing: 1945-04-19
•
Granted: 1948-12-28
•
Expires: 1965-04-19
Abstract
No abstract record available.
Inventors
- 👤 Hester Levi Cummings
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 14:19
CPC Classifications
E; E02; E02F; E02F5/00; E02F5/02; E02F5/027; A; A01; A01B; A01B5/00; A01B5/04; A01B5/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US603136A
Cited
US625764A
Cited
US702022A
Cited
US773871A
Cited
US1256984A
Cited
US1509310A
Cited
US2132166A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-12-28 | 1952-06-28 | 1952-12-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-12-28 | 1956-06-28 | 1956-12-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-12-28 | 1960-06-28 | 1960-12-28 | $7700.00 | Window Closed / Lapsed |