Patent US2913579A successfully refreshed from Google Patents.
US2913579A
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Frequency variation response circuit
Assignee: RCA Corp
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Filing: 1955-10-18
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Granted: 1959-11-17
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Expires: 1975-10-18
Abstract
No abstract record available.
Inventors
- 👤 Avins Jack
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 13:38
CPC Classifications
H; H03; H03D; H03D3/00; H03D3/02; H03D3/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2208091A
Cited
US2261286A
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US2311631A
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US2312343A
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US2368052A
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US2494795A
Cited
US2768388A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-11-16 | 1963-05-18 | 1963-11-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-11-16 | 1967-05-18 | 1967-11-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-11-16 | 1971-05-18 | 1971-11-17 | $7700.00 | Window Closed / Lapsed |