Patent US3411057A successfully refreshed from Google Patents.
US3411057A
Expired / Lapsed
US
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Digital fine and coarse system with pulse width torquer
Assignee: Warner and Swasey Co
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Filing: 1964-11-18
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Granted: 1968-11-12
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Expires: 1984-11-18
Abstract
No abstract record available.
Inventors
- 👤 John H Knight
- 👤 Vikmanis Juris
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 10:55
CPC Classifications
G; G05; G05B; G05B19/00; G05B19/02; G05B19/18; G05B19/19; G05B19/21; G05B19/23; G05B19/231; G05B2219/00; G05B2219/30; G05B2219/42; G05B2219/42237; G05B2219/43; G05B2219/43194
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) | 1971-11-12 | 1972-05-13 | 1972-11-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-11-12 | 1976-05-13 | 1976-11-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-11-12 | 1980-05-13 | 1980-11-12 | $7700.00 | Window Closed / Lapsed |