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US2469324A
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Circuit tuner
Assignee: RCA Corp
•
Filing: 1945-02-09
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Granted: 1949-05-03
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Expires: 1965-02-09
Abstract
No abstract record available.
Inventors
- 👤 Joseph G Beard
- 👤 Robert F Dressler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 04:49
CPC Classifications
H; H03; H03B; H03B19/00; H03J; H03J7/00; H03J7/02; H03J7/16; H03L; H03L5/00; H03L5/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1830837A
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US1934400A
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US2044749A
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US2069633A
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US2287925A
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US2254601A
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US2354827A
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US2358454A
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US2379689A
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US2387544A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-05-02 | 1952-11-01 | 1953-05-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-05-02 | 1956-11-01 | 1957-05-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-05-02 | 1960-11-01 | 1961-05-03 | $7700.00 | Window Closed / Lapsed |