US2643092A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hoist attachment for tractors
Assignee: Individual
•
Filing: 1949-11-18
•
Granted: 1953-06-23
•
Expires: 1969-11-18
Abstract
No abstract record available.
Inventors
- 👤 Paulette Leon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 13:26
CPC Classifications
A; A01; A01D; A01D87/00; A01D87/0053; A01D87/0069; E; E02; E02F; E02F3/00; E02F3/04; E02F3/28; E02F3/36; E02F3/42; E02F3/422
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1491718A
Cited
US2257796A
Cited
US2402071A
Cited
US2469187A
Cited
US2456852A
Cited
US2579888A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-06-22 | 1956-12-22 | 1957-06-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-06-22 | 1960-12-22 | 1961-06-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-06-22 | 1964-12-22 | 1965-06-23 | $7700.00 | Window Closed / Lapsed |