Patent US2461589A successfully refreshed from Google Patents.
US2461589A
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US
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Portable power-driven tree felling circular saw
Assignee: Individual
•
Filing: 1944-11-13
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Granted: 1949-02-15
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Expires: 1964-11-13
Abstract
No abstract record available.
Inventors
- 👤 James R Crawford
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:49
CPC Classifications
B; B27; B27B; B27B5/00; B27B5/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1414319A
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US1602357A
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US2050952A
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US2216971A
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US2274902A
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US2350880A
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US2354625A
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US2353873A
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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) | 1952-02-15 | 1952-08-16 | 1953-02-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-02-15 | 1956-08-16 | 1957-02-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-02-15 | 1960-08-16 | 1961-02-15 | $7700.00 | Window Closed / Lapsed |