US2965144A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tapered router bit and method
Assignee: Individual
•
Filing: 1957-10-29
•
Granted: 1960-12-20
•
Expires: 1977-10-29
Abstract
No abstract record available.
Inventors
- 👤 Robert B Loewenthal
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:41
CPC Classifications
B; B27; B27G; B27G13/00; B27G13/002; Y; Y10; Y10T; Y10T408/00; Y10T408/89
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US330259A
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US740506A
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US1273043A
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US1519876A
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US1614967A
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US1770925A
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US1939999A
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US1963611A
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US2311361A
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US2528300A
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US2652866A
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US2780966A
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US2819743A
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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) | 1963-12-20 | 1964-06-20 | 1964-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-12-20 | 1968-06-20 | 1968-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-12-20 | 1972-06-20 | 1972-12-20 | $7700.00 | Window Closed / Lapsed |