Patent US2657066A successfully refreshed from Google Patents.
US2657066A
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US
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Tool holding collet for boring bar assemblies
Assignee: Individual
•
Filing: 1950-12-22
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Granted: 1953-10-27
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Expires: 1970-12-22
Abstract
No abstract record available.
Inventors
- 👤 Jr Roy W Boyd
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 11:22
CPC Classifications
B; B23; B23B; B23B29/00; B23B29/03; B23B29/034; B23B29/03403; B23B29/03407; Y; Y10; Y10T; Y10T279/00; Y10T279/17; Y10T279/17411; Y10T279/17418; Y10T279/17427; Y10T279/17529; Y10T279/17547; Y10T279/34; Y10T279/3487; Y10T408/00; Y10T408/83; Y10T408/85; Y10T408/858; Y10T408/8598; Y10T408/85995
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US374743A
Cited
US388573A
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US2108699A
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US1231347A
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US1278427A
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US1438391A
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US1698861A
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US1765362A
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US2359210A
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US2537517A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-10-26 | 1957-04-27 | 1957-10-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-10-26 | 1961-04-27 | 1961-10-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-10-26 | 1965-04-27 | 1965-10-27 | $7700.00 | Window Closed / Lapsed |