US2946938A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic control of industrial machine servosystem with differential transmitter
Assignee: Centre National de la Recherche Scientifique
•
Filing: 1957-01-25
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Granted: 1960-07-26
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Expires: 1977-01-25
Abstract
No abstract record available.
Inventors
- 👤 Gavreau Vladimir
- 👤 Calaora Albert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:40
CPC Classifications
G; G05; G05B; G05B19/00; G05B19/02; G05B19/42; G05B19/421; Y; Y10; Y10T; Y10T409/00; Y10T409/30; Y10T409/30084; Y10T409/300896
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US752394A
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DE662944C
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US1284219A
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US1653946A
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US1937739A
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US2347590A
Cited
US2388498A
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US2411147A
Cited
US2553249A
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US2537770A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-07-26 | 1964-01-25 | 1964-07-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-07-26 | 1968-01-25 | 1968-07-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-07-26 | 1972-01-25 | 1972-07-26 | $7700.00 | Window Closed / Lapsed |