Patent US2843757A successfully refreshed from Google Patents.
US2843757A
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Automatic gain control circuit for use with photoconductive devices
Assignee: Raytheon Co
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Filing: 1955-08-25
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Granted: 1958-07-15
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Expires: 1975-08-25
Abstract
No abstract record available.
Inventors
- 👤 John Ercell E St
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:21
CPC Classifications
H; H04; H04N; H04N1/00; H04N1/40; H04N1/407; G; G01; G01J; G01J1/00; G01J1/42; G01J1/44; G05; G05B; G05B11/00; G05B11/01; G05B11/012; G05B11/017
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2469852A
Cited
US2517554A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-07-14 | 1962-01-13 | 1962-07-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-07-14 | 1966-01-13 | 1966-07-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-07-14 | 1970-01-13 | 1970-07-15 | $7700.00 | Window Closed / Lapsed |