US2690639A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydraulic system for tree shakers
Assignee: A D Goodwin & Son
•
Filing: 1952-02-09
•
Granted: 1954-10-05
•
Expires: 1972-02-09
Abstract
No abstract record available.
Inventors
- 👤 Alfred D Goodwin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 17:15
CPC Classifications
A; A01; A01D; A01D46/00; A01D46/26; A01D2046/268
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-10-04 | 1958-04-05 | 1958-10-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-10-04 | 1962-04-05 | 1962-10-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-10-04 | 1966-04-05 | 1966-10-05 | $7700.00 | Window Closed / Lapsed |