Patent US2638463A successfully refreshed from Google Patents.
US2492979A
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Control for intermittent drives
Assignee: American Type Founders Co Inc
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Filing: 1946-07-03
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Granted: 1950-01-03
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Expires: 1966-07-03
Abstract
No abstract record available.
Inventors
- 👤 William A Freer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:47
CPC Classifications
H; H01; H01H; H01H63/00; H01H63/16; H01H63/24; F; F16; F16D; F16D41/00; F16D41/12; G; G03; G03B; G03B1/00; G03B1/18; Y; Y10; Y10T; Y10T74/00; Y10T74/11
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) | 1953-01-02 | 1953-07-04 | 1954-01-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-01-02 | 1957-07-04 | 1958-01-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-01-02 | 1961-07-04 | 1962-01-03 | $7700.00 | Window Closed / Lapsed |