Patent US2982822A successfully refreshed from Google Patents.
US2982822A
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Automatic gain control circuit utilizing variable capacitance
Assignee: International Business Machines Corp
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Filing: 1958-06-25
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Granted: 1961-05-02
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Expires: 1978-06-25
Abstract
No abstract record available.
Inventors
- 👤 Glenn C Bacon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:00
CPC Classifications
G; G11; G11B; G11B5/00; G11B5/48; G11B5/488; G11B5/4886; G11B5/012; H; H03; H03G; H03G7/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2230042A
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US2270789A
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US2320429A
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US2454687A
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US2691103A
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US2787750A
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US2802908A
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US2811709A
Cited
US2787783A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-05-01 | 1964-10-31 | 1965-05-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-01 | 1968-10-31 | 1969-05-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-01 | 1972-10-31 | 1973-05-02 | $7700.00 | Window Closed / Lapsed |