Patent US2945996A successfully refreshed from Google Patents.
US2945996A
Expired / Lapsed
US
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Servo amplifier system
Assignee: Lear Inc
•
Filing: 1956-11-28
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Granted: 1960-07-19
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Expires: 1976-11-28
Abstract
No abstract record available.
Inventors
- 👤 Clyde J Norton
- 👤 Donald F Dimon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:56
CPC Classifications
G; G05; G05D; G05D3/00; G05D3/12; G05D3/14; G05D3/1418
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2443347A
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US2426497A
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US2457792A
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US2489637A
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US2476849A
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US2594449A
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US2698392A
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US2816179A
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US2774021A
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US2812393A
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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) | 1963-07-19 | 1964-01-18 | 1964-07-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-07-19 | 1968-01-18 | 1968-07-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-07-19 | 1972-01-18 | 1972-07-19 | $7700.00 | Window Closed / Lapsed |