US2616345A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tractor mounted two-way plow
Assignee: Deere and Co
•
Filing: 1950-05-13
•
Granted: 1952-11-04
•
Expires: 1970-05-13
Abstract
No abstract record available.
Inventors
- 👤 Walter H Silver
- 👤 William V Lohrman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 13:14
CPC Classifications
A; A01; A01B; A01B3/00; A01B3/36; A01B3/40; A01B3/42
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US199036A
Cited
USRE22627E
Cited
US1076001A
Cited
US1800284A
Cited
US2035150A
Cited
CH182630A
Cited
US2227366A
Cited
US2440550A
Cited
US2429463A
Cited
US2534971A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-11-04 | 1956-05-05 | 1956-11-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-11-04 | 1960-05-05 | 1960-11-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-11-04 | 1964-05-05 | 1964-11-04 | $7700.00 | Window Closed / Lapsed |