US2859338A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Squelch system for frequency modulation receiver
Assignee: Motorola Solutions Inc
•
Filing: 1954-06-01
•
Granted: 1958-11-04
•
Expires: 1974-06-01
Abstract
No abstract record available.
Inventors
- 👤 Charles F Paluka
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:24
CPC Classifications
H; H03; H03G; H03G3/00; H03G3/20; H03G3/22; H03G3/26; H03G3/28; H03G11/00; H03G11/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2617019A
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US2509381A
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US2588031A
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US2527617A
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US2679000A
Cited
US2719221A
Cited
US2751493A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-11-03 | 1962-05-05 | 1962-11-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-11-03 | 1966-05-05 | 1966-11-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-11-03 | 1970-05-05 | 1970-11-04 | $7700.00 | Window Closed / Lapsed |