Patent US3367217A successfully refreshed from Google Patents.
US3367217A
Expired / Lapsed
US
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Taper boring or turning tool unit
Assignee: Individual
•
Filing: 1965-10-21
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Granted: 1968-02-06
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Expires: 1985-10-21
Abstract
No abstract record available.
Inventors
- 👤 Hugh M Franks
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 09:58
CPC Classifications
B; B23; B23B; B23B29/00; B23B29/02; B23B41/00; B23B41/06; B23B5/00; B23B5/36; B23B5/38; Y; Y10; Y10T; Y10T408/00; Y10T408/83; Y10T82/00; Y10T82/12; Y10T82/125
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US200071A
Cited
US1436522A
Cited
US1679912A
Cited
US2638802A
Cited
US2785262A
Cited
US3134996A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-02-05 | 1971-08-07 | 1972-02-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-02-05 | 1975-08-07 | 1976-02-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-02-05 | 1979-08-07 | 1980-02-06 | $7700.00 | Window Closed / Lapsed |