US2663133A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mower attachment for tractors
Assignee: H F DAVIS TRACTOR Co
•
Filing: 1949-03-12
•
Granted: 1953-12-22
•
Expires: 1969-03-12
Abstract
No abstract record available.
Inventors
- 👤 Ray B Davis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 09:48
CPC Classifications
A; A01; A01D; A01D34/00; A01D34/835; A01D34/86; A01D34/866
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1728150A
Cited
US1958405A
Cited
US1956007A
Cited
US2171761A
Cited
US2170573A
Cited
US2291987A
Cited
US2328838A
Cited
US2311117A
Cited
US2324563A
Cited
US2457693A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-12-21 | 1957-06-22 | 1957-12-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-12-21 | 1961-06-22 | 1961-12-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-12-21 | 1965-06-22 | 1965-12-22 | $7700.00 | Window Closed / Lapsed |