Patent US2789736A successfully refreshed from Google Patents.
US2789736A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Seed-planting implements
Assignee: NAT DIE CASTING Co PROPRI
•
Filing: 1953-04-30
•
Granted: 1957-04-23
•
Expires: 1973-04-30
Abstract
No abstract record available.
Inventors
- 👤 Agnoletto Giovanni
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 17:10
CPC Classifications
A; A01; A01C; A01C7/00; A01C7/08; Y; Y10; Y10S; Y10S111/00; Y10S111/925; Y10S111/927
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US801139A
Cited
US991758A
Cited
US1286464A
Cited
US1282648A
Cited
US1290090A
Cited
US1901639A
Cited
US2054552A
Cited
US2351078A
Cited
US2426529A
Cited
US2363749A
Cited
US2351511A
Cited
US2656951A
Cited
US2649725A
Cited
US2640405A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-04-22 | 1960-10-22 | 1961-04-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-04-22 | 1964-10-22 | 1965-04-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-04-22 | 1968-10-22 | 1969-04-23 | $7700.00 | Window Closed / Lapsed |