Patent US3913326A successfully refreshed from Google Patents.
US3482155A
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Time optimal servo control system
Assignee: International Business Machines Corp
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Filing: 1966-12-30
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Granted: 1969-12-02
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Expires: 1986-12-30
Abstract
No abstract record available.
Inventors
- 👤 Thorbjoern R Fredriksen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:55
CPC Classifications
G; G05; G05D; G05D3/00; G05D3/12; G05D3/14; G05D3/18; G05D3/183; G05B; G05B19/00; G05B19/02; G05B19/18; G05B19/19; G05B19/40; G05B2219/00; G05B2219/30; G05B2219/43; G05B2219/43006
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2994025A
Cited
US2907937A
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US3122687A
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US3139570A
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US3245073A
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US3350612A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-12-01 | 1973-06-02 | 1973-12-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-12-01 | 1977-06-02 | 1977-12-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-12-01 | 1981-06-02 | 1981-12-02 | $7700.00 | Window Closed / Lapsed |