Patent US3290600A successfully refreshed from Google Patents.
US3290600A
Expired / Lapsed
US
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Wide-band discriminators
Assignee: Thales SA
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Filing: 1963-07-31
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Granted: 1966-12-06
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Expires: 1983-07-31
Abstract
No abstract record available.
Inventors
- 👤 Malnar Leon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:18
CPC Classifications
H; H03; H03D; H03D3/00; H03D3/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
55 words
A FREQUENCY DISCRIMINATOR FOR EXTRACTING THE INFORMATION FROM A FREQUENCY MODULATED WAVE, THE CARRIER FREQUENCY OF WHICH IS VARIABLE, COMPRISING: A MIXER HAVING TWO INPUTS AND AN OUTPUT; ANOTHER MIXER COUPLED TO ONE OF SAID INPUTS; MEANS FOR FEEDING TO SAID OTHER MIXER SAID WAVE AND A FIXED FREQUENCY SIGNAL; A DELAY LINE COUPLED TO
Claim 2
Dependent Claim
55 words
A FREQUENCY DISCRIMINATOR FOR EXTRACTING THE INFORMATION FROM A FREQUENCY MODULATED WAVE, THE CARRIER FREQUENCY OF WHICH IS VARIABLE, COMPRISING: A MIXER HAVING TWO INPUTS AND AN OUTPUT; ANOTHER MIXER COUPLED TO ONE OF SAID INPUTS; MEANS FOR FEEDING TO SAID OTHER MIXER SAID WAVE AND A FIXED FREQUENCY SIGNAL; A DELAY LINE COUPLED TO
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-12-05 | 1970-06-06 | 1970-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-05 | 1974-06-06 | 1974-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-05 | 1978-06-06 | 1978-12-06 | $7700.00 | Window Closed / Lapsed |