Patent US3519944A successfully refreshed from Google Patents.
US3519944A
Expired / Lapsed
US
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Angle modulation discriminator-detector circuit
Assignee: RCA Corp
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Filing: 1968-02-15
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Granted: 1970-07-07
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Expires: 1988-02-15
Abstract
No abstract record available.
Inventors
- 👤 Jack Avins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:48
CPC Classifications
H; H03; H03D; H03D3/00; H03D3/02; H03D3/06; H03D3/14; Y; Y10; Y10S; Y10S26/00; Y10S26/01
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2248229A
Cited
US3217263A
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US3137821A
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US3183449A
Cited
US3416091A
Cited
US3399353A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-07-06 | 1974-01-05 | 1974-07-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-07-06 | 1978-01-05 | 1978-07-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-07-06 | 1982-01-05 | 1982-07-07 | $7700.00 | Window Closed / Lapsed |