Patent US2543523A successfully refreshed from Google Patents.
US2543523A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Noise control arrangement for radio receivers and the like
Assignee: Collins Radio Co
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Filing: 1946-02-27
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Granted: 1951-02-27
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Expires: 1966-02-27
Abstract
No abstract record available.
Inventors
- 👤 Luther W Couillard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 13:03
CPC Classifications
H; H03; H03G; H03G11/00; H03G11/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2227197A
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US2279819A
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US2272934A
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US2239906A
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US2208398A
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US2244639A
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US2379799A
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US2263633A
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US2345762A
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US2372934A
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US2357983A
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US2400948A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-02-26 | 1954-08-28 | 1955-02-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-02-26 | 1958-08-28 | 1959-02-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-02-26 | 1962-08-28 | 1963-02-27 | $7700.00 | Window Closed / Lapsed |