US3004157A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic gain control system for semi-conductor devices
Assignee: RCA Corp
•
Filing: 1953-11-24
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Granted: 1961-10-10
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Expires: 1973-11-24
Abstract
No abstract record available.
Inventors
- 👤 Larry A Freedman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 15:08
CPC Classifications
H; H03; H03G; H03G1/00; H03G1/0005; H03G1/0017; H03G3/00; H03G3/20; H03G3/30; H03G3/3052
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2001825A
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US2031238A
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US2144921A
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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) | 1964-10-09 | 1965-04-10 | 1965-10-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-10-09 | 1969-04-10 | 1969-10-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-10-09 | 1973-04-10 | 1973-10-10 | $7700.00 | Window Closed / Lapsed |