US2657619A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Clod breaker
Assignee: LYMAN G PERKINS
•
Filing: 1948-10-22
•
Granted: 1953-11-03
•
Expires: 1968-10-22
Abstract
No abstract record available.
Inventors
- 👤 Lafayette E Gilreath
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 10:06
CPC Classifications
A; A01; A01B; A01B27/00
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US730837A
Cited
US1578384A
Cited
US1637424A
Cited
US1783009A
Cited
US2303043A
Cited
US2336152A
Cited
GB559336A
Cited
US2472386A
Cited
US2465641A
Cited
US2513165A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-11-02 | 1957-05-04 | 1957-11-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-11-02 | 1961-05-04 | 1961-11-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-11-02 | 1965-05-04 | 1965-11-03 | $7700.00 | Window Closed / Lapsed |