US2997579A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tunable oscillator circuit
Assignee: RCA Corp
•
Filing: 1953-05-27
•
Granted: 1961-08-22
•
Expires: 1973-05-27
Abstract
No abstract record available.
Inventors
- 👤 Murakami Tomomi
- 👤 John C Achenbach
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 05:35
CPC Classifications
H; H03; H03D; H03D7/00; H03D7/06; H03D7/08; H03J; H03J5/00; H03J5/24; H03J5/26; H03J5/30
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2705288A
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US2543479A
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US2596117A
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US2584120A
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US2584176A
Cited
US2698387A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-08-21 | 1965-02-20 | 1965-08-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-08-21 | 1969-02-20 | 1969-08-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-08-21 | 1973-02-20 | 1973-08-22 | $7700.00 | Window Closed / Lapsed |