US2912571A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radio receiver with squelch means in audio section and battery saver in output circuit
Assignee: Motorola Solutions Inc
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Filing: 1955-04-19
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Granted: 1959-11-10
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Expires: 1975-04-19
Abstract
No abstract record available.
Inventors
- 👤 Andrew B Jacobsen
- 👤 Angus A Macdonald
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 13:56
CPC Classifications
H; H04; H04B; H04B1/00; H04B1/06; H04B1/16; H04B1/1607; H04B1/1623; H03; H03F; H03F1/00; H03F1/02; H03F1/04; H03G; H03G3/00; H03G3/20; H03G3/22; H03G3/26; H03G3/28
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1859565A
Cited
US1928410A
Cited
US2115825A
Cited
US2279095A
Cited
US2343115A
Cited
US2381754A
Cited
US2509381A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-11-09 | 1963-05-11 | 1963-11-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-11-09 | 1967-05-11 | 1967-11-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-11-09 | 1971-05-11 | 1971-11-10 | $7700.00 | Window Closed / Lapsed |