Patent US3405337A successfully refreshed from Google Patents.
US3405337A
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US
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Fail operational control system for redundant servos with torque signal equalization
Assignee: Unisys Corp
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Filing: 1965-04-13
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Granted: 1968-10-08
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Expires: 1985-04-13
Abstract
No abstract record available.
Inventors
- 👤 Michael J Popik
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:18
CPC Classifications
G; G05; G05D; G05D1/00; G05D1/0055; G05D1/0077
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3128968A
Cited
US2945170A
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US3044002A
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US3143693A
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US3149272A
Cited
US3286143A
Cited
US3145330A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-10-08 | 1972-04-08 | 1972-10-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-10-08 | 1976-04-08 | 1976-10-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-10-08 | 1980-04-08 | 1980-10-08 | $7700.00 | Window Closed / Lapsed |