Patent US2991909A successfully refreshed from Google Patents.
US2991909A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Single seed sowing machine
Assignee: Individual
•
Filing: 1957-02-21
•
Granted: 1961-07-11
•
Expires: 1977-02-21
Abstract
No abstract record available.
Inventors
- 👤 Lamazou Jean
- 👤 Lamazou Paul
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:18
CPC Classifications
A; A01; A01C; A01C7/00; A01C7/04; A01C7/042; A01C7/044; A01C7/046; A01C7/0443
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US967644A
Cited
US1046199A
Cited
US1331235A
Cited
US1352411A
Cited
US1501335A
Cited
US2324823A
Cited
US2415577A
Cited
US2505758A
Cited
US2525718A
Cited
US2737314A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-07-10 | 1965-01-09 | 1965-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-07-10 | 1969-01-09 | 1969-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-07-10 | 1973-01-09 | 1973-07-11 | $7700.00 | Window Closed / Lapsed |