US2769641A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reversible feed for manure spreaders
Assignee: Deere and Co
•
Filing: 1953-04-10
•
Granted: 1956-11-06
•
Expires: 1973-04-10
Abstract
No abstract record available.
Inventors
- 👤 Brown Theophilus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:08
CPC Classifications
A; A01; A01C; A01C3/00; A01C3/06; Y; Y10; Y10T; Y10T74/00; Y10T74/15; Y10T74/1503; Y10T74/1508; Y10T74/1558; Y10T74/1565; Y10T74/1566; Y10T74/1574; Y10T74/1577; Y10T74/1579; Y10T74/18; Y10T74/1836
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US863782A
Cited
US1129701A
Cited
US1463492A
Cited
US1868337A
Cited
US1979945A
Cited
US2302879A
Cited
US2342837A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-11-06 | 1960-05-07 | 1960-11-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-11-06 | 1964-05-07 | 1964-11-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-11-06 | 1968-05-07 | 1968-11-06 | $7700.00 | Window Closed / Lapsed |