Patent US5491514A successfully refreshed from Google Patents.
Patent US4413179A successfully refreshed from Google Patents.
Patent US2441466A successfully refreshed from Google Patents.
US2441466A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Farm implement
Assignee: Individual
•
Filing: 1946-05-01
•
Granted: 1948-05-11
•
Expires: 1966-05-01
Abstract
No abstract record available.
Inventors
- 👤 Dock C Boren
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 18:59
CPC Classifications
A; A01; A01C; A01C7/00; A01C7/08; A01C7/12; A01C5/00; A01C5/06; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19642; Y10T74/19679
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1114940A
Cited
US1100313A
Cited
US1250329A
Cited
US1475710A
Cited
US1582781A
Cited
US2026887A
Cited
US2228558A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-05-11 | 1951-11-10 | 1952-05-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-05-11 | 1955-11-10 | 1956-05-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-05-11 | 1959-11-10 | 1960-05-11 | $7700.00 | Window Closed / Lapsed |