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Patent US2985825A successfully refreshed from Google Patents.
US2985825A
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Resonance relation electrical servosystem
Assignee: Schneider Electric Systems USA Inc
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Filing: 1959-01-15
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Granted: 1961-05-23
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Expires: 1979-01-15
Abstract
No abstract record available.
Inventors
- 👤 Ellerton W Whittier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 14:34
CPC Classifications
G; G01; G01N; G01N27/00; G01N27/02; G01N27/22; G01N27/223
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2611021A
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US2714663A
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US2651940A
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US2788445A
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US2682033A
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US2849613A
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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) | 1964-05-22 | 1964-11-21 | 1965-05-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-22 | 1968-11-21 | 1969-05-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-22 | 1972-11-21 | 1973-05-23 | $7700.00 | Window Closed / Lapsed |