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US2864942A
Expired / Lapsed
US
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Receiver tuning in two-way radio
Assignee: AIRCRAFT RADIO CORP
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Filing: 1955-03-11
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Granted: 1958-12-16
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Expires: 1975-03-11
Abstract
No abstract record available.
Inventors
- 👤 Frederick H Drake
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 20:17
CPC Classifications
H; H04; H04B; H04B1/00; H04B1/38; H04B1/40; H04B1/54
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2409845A
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US2369193A
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US2411891A
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US2679580A
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US2469539A
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US2539537A
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US2684437A
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US2671166A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-12-15 | 1962-06-16 | 1962-12-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-12-15 | 1966-06-16 | 1966-12-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-12-15 | 1970-06-16 | 1970-12-16 | $7700.00 | Window Closed / Lapsed |