Patent US2661035A successfully refreshed from Google Patents.
US2661035A
Expired / Lapsed
US
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Vertically-adjustable tree-felling tractor mounted saw
Assignee: Individual
•
Filing: 1952-06-05
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Granted: 1953-12-01
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Expires: 1972-06-05
Abstract
No abstract record available.
Inventors
- 👤 John T Ryals
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:53
CPC Classifications
B; B27; B27B; B27B5/00; B27B5/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE211980C
Cited
US638553A
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US1067076A
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US2233114A
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US2463232A
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US2441431A
Cited
US2457511A
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US2577906A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-11-30 | 1957-06-01 | 1957-12-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-11-30 | 1961-06-01 | 1961-12-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-11-30 | 1965-06-01 | 1965-12-01 | $7700.00 | Window Closed / Lapsed |