US3539271A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for depositing leaves in windrows
Assignee: FMC Corp
•
Filing: 1968-11-12
•
Granted: 1970-11-10
•
Expires: 1988-11-12
Abstract
No abstract record available.
Inventors
- 👤 Leon D Greenwood
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 23:08
CPC Classifications
E; E01; E01H; E01H1/00; E01H1/08; E01H1/0809; A; A01; A01G; A01G20/00; A01G20/40; A01G20/43; A01G20/47
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1536846A
Cited
US2279425A
Cited
US2321792A
Cited
US2938672A
Cited
US3252656A
Cited
US3319890A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-11-09 | 1974-05-11 | 1974-11-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-11-09 | 1978-05-11 | 1978-11-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-11-09 | 1982-05-11 | 1982-11-10 | $7700.00 | Window Closed / Lapsed |