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US2644494A
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US
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Smoothing saw blade
Assignee: Individual
•
Filing: 1950-05-05
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Granted: 1953-07-07
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Expires: 1970-05-05
Abstract
No abstract record available.
Inventors
- 👤 Axel Eugen Lundberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 09:51
CPC Classifications
B; B27; B27B; B27B33/00; B27B33/02; B27B33/08; Y; Y10; Y10T; Y10T83/00; Y10T83/929; Y10T83/9319; Y10T83/936
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-07-06 | 1957-01-05 | 1957-07-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-07-06 | 1961-01-05 | 1961-07-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-07-06 | 1965-01-05 | 1965-07-07 | $7700.00 | Window Closed / Lapsed |