Patent US2677284A successfully refreshed from Google Patents.
US2677284A
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US
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Manually operable speed control for machine tools or the like
Assignee: Individual
•
Filing: 1950-01-26
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Granted: 1954-05-04
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Expires: 1970-01-26
Abstract
No abstract record available.
Inventors
- 👤 Berthiez Charles William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:21
CPC Classifications
G; G05; G05G; G05G1/00; G05G1/015; B; B23; B23Q; B23Q1/00; B23Q1/0009; B23Q1/0045; B23Q15/00; G05B; G05B19/00; G05B19/02; G05B19/04; G05B19/0405; Y; Y10; Y10T; Y10T74/00; Y10T74/20; Y10T74/20012
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1618790A
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US1861511A
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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) | 1957-05-03 | 1957-11-02 | 1958-05-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-05-03 | 1961-11-02 | 1962-05-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-05-03 | 1965-11-02 | 1966-05-04 | $7700.00 | Window Closed / Lapsed |