US3383608A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High frequency discriminator
Assignee: TDK Micronas GmbH
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Filing: 1965-07-19
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Granted: 1968-05-14
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Expires: 1985-07-19
Abstract
No abstract record available.
Inventors
- 👤 Michael O Felix
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 03:48
CPC Classifications
H; H03; H03D; H03D3/00; H03D3/02; H03D3/06; H03D3/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
74 words
A HIGH FREQUENCY DISCRIMINATOR COMPRISING FIRST AND SECOND SERIES RESONANT CIRCUITS, EACH OF SUCH CIRCUITS INCLUDING SERIES CONNECTED INDUCTIVE AND CAPACITIVE MEANS, ONE OF SAID CIRCUITS BEING RESONANT AT A FREQUENCY ABOVE A CENTER FREQUENCY, AND THE OTHER OF SAID CIRCUITS BEING RESONANT AT A FREQUENCY BELOW SUCH CENTER FREQUENCY, RECTIFIERS RESPECTIVELY CONNECTED IN SERIES TO EACH OF SAID RESONANT CIRCUITS, INPUT SIGNAL MEANS COUPLED TO SAID RESONANT CIRCUITS, HIGH FREQUENCY FILTERS RESPECTIVELY COUPLED
Claim 2
Dependent Claim
74 words
A HIGH FREQUENCY DISCRIMINATOR COMPRISING FIRST AND SECOND SERIES RESONANT CIRCUITS, EACH OF SUCH CIRCUITS INCLUDING SERIES CONNECTED INDUCTIVE AND CAPACITIVE MEANS, ONE OF SAID CIRCUITS BEING RESONANT AT A FREQUENCY ABOVE A CENTER FREQUENCY, AND THE OTHER OF SAID CIRCUITS BEING RESONANT AT A FREQUENCY BELOW SUCH CENTER FREQUENCY, RECTIFIERS RESPECTIVELY CONNECTED IN SERIES TO EACH OF SAID RESONANT CIRCUITS, INPUT SIGNAL MEANS COUPLED TO SAID RESONANT CIRCUITS, HIGH FREQUENCY FILTERS RESPECTIVELY COUPLED
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) | 1971-05-14 | 1971-11-13 | 1972-05-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-05-14 | 1975-11-13 | 1976-05-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-05-14 | 1979-11-13 | 1980-05-14 | $7700.00 | Window Closed / Lapsed |