Patent US2639737A successfully refreshed from Google Patents.
US2639737A
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US
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Motor driven reciprocating saw
Assignee: Individual
•
Filing: 1948-07-03
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Granted: 1953-05-26
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Expires: 1968-07-03
Abstract
No abstract record available.
Inventors
- 👤 Harold S Forsberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:16
CPC Classifications
D; D05; D05B; D05B81/00; B; B23; B23D; B23D49/00; B23D49/10; B23D49/16; B23D49/162; B23D51/00; B23D51/02; B23D51/16; B23D51/161; B23D59/00; B23D59/006; B23D59/0062; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18056; Y10T74/18248; Y10T74/18256; Y10T83/00; Y10T83/929; Y10T83/9457; Y10T83/9473; Y10T83/9481
Claims Analysis
Total Claims: 0
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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) | 1956-05-25 | 1956-11-24 | 1957-05-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-05-25 | 1960-11-24 | 1961-05-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-05-25 | 1964-11-24 | 1965-05-26 | $7700.00 | Window Closed / Lapsed |