Patent CA765168A successfully refreshed from Google Patents.
Patent US3016931A successfully refreshed from Google Patents.
US3016931A
Expired / Lapsed
US
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Semi-automatic multiblade power saw
Assignee: Individual
•
Filing: 1959-10-30
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Granted: 1962-01-16
•
Expires: 1979-10-30
Abstract
No abstract record available.
Inventors
- 👤 Alvin F Brunkow
- 👤 Brunkow James
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 18:16
CPC Classifications
B; B27; B27B; B27B5/00; B27B5/02; B23; B23D; B23D45/00; B23D45/10; B23D47/00; B23D47/04; B23D47/042; Y; Y10; Y10T; Y10T83/00; Y10T83/202; Y10T83/2092; Y10T83/2198; Y10T83/566; Y10T83/5669; Y10T83/748; Y10T83/7487; Y10T83/7493; Y10T83/7507; Y10T83/768; Y10T83/7684; Y10T83/7693
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US247593A
Cited
US1309017A
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US2290626A
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US771836A
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US1411045A
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US1670946A
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US2637353A
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US2663330A
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US2686350A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-01-15 | 1965-07-17 | 1966-01-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-01-15 | 1969-07-17 | 1970-01-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-01-15 | 1973-07-17 | 1974-01-16 | $7700.00 | Window Closed / Lapsed |