Patent US2657719A successfully refreshed from Google Patents.
US2657719A
Expired / Lapsed
US
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Adjustable power-driven circular saw
Assignee: Individual
•
Filing: 1951-02-06
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Granted: 1953-11-03
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Expires: 1971-02-06
Abstract
No abstract record available.
Inventors
- 👤 Harold S Forsberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:26
CPC Classifications
B; B27; B27B; B27B9/00; B27B9/02; B23; B23D; B23D47/00; B23D47/12; B23D47/126
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1803068A
Cited
US1932511A
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US1734406A
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US1858459A
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US1833785A
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US1900553A
Cited
US2155082A
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US2427580A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-11-02 | 1957-05-04 | 1957-11-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-11-02 | 1961-05-04 | 1961-11-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-11-02 | 1965-05-04 | 1965-11-03 | $7700.00 | Window Closed / Lapsed |