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Patent US2802377A successfully refreshed from Google Patents.
US2802377A
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Driving of spindles of machine tools
Assignee: CHARLES BERTHIEZ ETS
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Filing: 1954-06-09
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Granted: 1957-08-13
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Expires: 1974-06-09
Abstract
No abstract record available.
Inventors
- 👤 Berthiez Gilbert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 22:56
CPC Classifications
F; F16; F16H; F16H55/00; F16H55/02; F16H55/17; F16H55/18; B; B23; B23Q; B23Q5/00; B23Q5/54; B23Q5/56; F16H1/00; F16H1/28; F16H1/2863; F16H2001/289; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19628; Y10T74/19633
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) | 1960-08-12 | 1961-02-11 | 1961-08-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-08-12 | 1965-02-11 | 1965-08-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-08-12 | 1969-02-11 | 1969-08-13 | $7700.00 | Window Closed / Lapsed |