Patent US2790943A successfully refreshed from Google Patents.
US2790943A
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US
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Multiple gain amplifier for servo control
Assignee: Honeywell Inc
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Filing: 1951-08-27
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Granted: 1957-04-30
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Expires: 1971-08-27
Abstract
No abstract record available.
Inventors
- 👤 Ii Herbert S Woodward
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 16:20
CPC Classifications
G; G05; G05D; G05D1/00; G05D1/0055; G05D1/0066
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2323634A
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US2346838A
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US2369066A
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US2420249A
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GB584475A
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US2517556A
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US2508640A
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US2482973A
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US2557194A
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US2591637A
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US2572794A
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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) | 1960-04-29 | 1960-10-29 | 1961-04-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-04-29 | 1964-10-29 | 1965-04-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-04-29 | 1968-10-29 | 1969-04-30 | $7700.00 | Window Closed / Lapsed |