US2543523A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Noise control arrangement for radio receivers and the like
Assignee: Collins Radio Co
•
Filing: 1946-02-27
•
Granted: 1951-02-27
•
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
2026-10-23 07:26
CPC Classifications
H; H03; H03G; H03G11/00; H03G11/04
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2227197A
Cited
US2279819A
Cited
US2272934A
Cited
US2239906A
Cited
US2208398A
Cited
US2244639A
Cited
US2379799A
Cited
US2263633A
Cited
US2345762A
Cited
US2372934A
Cited
US2357983A
Cited
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 |