Patent US2633787A successfully refreshed from Google Patents.
US2633787A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reversible agricultural implement
Assignee: Ferguson Harry Inc
•
Filing: 1949-04-05
•
Granted: 1953-04-07
•
Expires: 1969-04-05
Abstract
No abstract record available.
Inventors
- 👤 Noral A Nelson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 22:09
CPC Classifications
A; A01; A01B; A01B3/00; A01B3/36; A01B3/40; A01B3/42; A01B3/421
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
DE47011C
Cited
US780609A
Cited
AT48294B
Cited
FR747489A
Cited
US2227366A
Cited
FR875681A
Cited
US2429463A
Cited
CH236949A
Cited
CH240945A
Cited
US2543786A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-04-06 | 1956-10-06 | 1957-04-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-04-06 | 1960-10-06 | 1961-04-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-04-06 | 1964-10-06 | 1965-04-07 | $7700.00 | Window Closed / Lapsed |