US2766535A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tree lifter
Assignee: Individual
•
Filing: 1953-08-03
•
Granted: 1956-10-16
•
Expires: 1973-08-03
Abstract
No abstract record available.
Inventors
- 👤 John F Ralston
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 14:55
CPC Classifications
E; E02; E02F; E02F3/00; E02F3/04; E02F3/76; E02F3/80; E02F3/815; E02F3/8152; A; A01; A01G; A01G23/00; A01G23/02; A01G23/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
CA488908A
Cited
US2302801A
Cited
US2348899A
Cited
US2418251A
Cited
US2506662A
Cited
US2437176A
Cited
US2482612A
Cited
US2652639A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-10-16 | 1960-04-16 | 1960-10-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-10-16 | 1964-04-16 | 1964-10-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-10-16 | 1968-04-16 | 1968-10-16 | $7700.00 | Window Closed / Lapsed |