Patent US3366859A successfully refreshed from Google Patents.
US3366859A
Expired / Lapsed
US
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Multiple input servo motor control system
Assignee: General Precision Systems Inc
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Filing: 1966-04-05
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Granted: 1968-01-30
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Expires: 1986-04-05
Abstract
No abstract record available.
Inventors
- 👤 Leonard E Ludvigsen
- 👤 Willard J Opocensky
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 12:57
CPC Classifications
G; G01; G01J; G01J3/00; G01J3/46; G01J3/50; G01J3/465
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2429605A
Cited
GB611992A
Cited
US2853665A
Cited
US2790121A
Cited
US3131350A
Cited
US3271643A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-01-29 | 1971-07-31 | 1972-01-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-01-29 | 1975-07-31 | 1976-01-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-01-29 | 1979-07-31 | 1980-01-30 | $7700.00 | Window Closed / Lapsed |