US3188554A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Attenuation network
Assignee: Sinclair Research Inc
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Filing: 1961-06-13
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Granted: 1965-06-08
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Expires: 1981-06-13
Abstract
No abstract record available.
Inventors
- 👤 Albert C Reid
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 05:10
CPC Classifications
H; H03; H03H; H03H7/00; H03H7/24; H03H7/25; H03H7/253
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
136 words
AN ATTENUATION NETWORK INCLUDING A PAIR OF ZENER DIODES, ONE SAID DIODE HAVING AN ELECTRODE THEREOF CONNECTED TO THE ELECTRODE OF OPPOSITE POLARITY OF THE OTHER SAID DIODE, D.C. BIAS MEANS CONNECTED TO THE OTHER ELECTRODE OF EACH SAID DIODE WHEREBY THE APPLIED VOLTAGE ON EACH SAID DIODE IS IN THE NEGATIVE NON-CONDUCTING REGION BETWEEN ZERO POTENTIAL AND THE ZENER POTENTIAL, A PAIR OF CAPACITIVE MEANS SERIALLY INTERCONNECTING BETWEEN SAID OTHER ELECTRODES OF SAID PAIR OF DIODES, INPUT CIRCUIT MEANS COUPLED TO THE COMMON CONNECTION OF SAID FIRST NAMED ELECTRODES OF SAID DIODES AND TO THE COMMON CONNECTION OF SAID CAPACITIVE MEANS FOR APPLYING AN A.C. SIGNAL CROSS SAID DIODES, AND OUTPUT CIRCUIT MEANS COUPLED TO SAID COMMON CONNECTION OF SAID FIRST NAMED ELECTRODES OF SAID DIODES AND TO THE COMMON CONNECTION OF SAID CAPACITIVE MEANS.
Claim 2
Dependent Claim
136 words
AN ATTENUATION NETWORK INCLUDING A PAIR OF ZENER DIODES, ONE SAID DIODE HAVING AN ELECTRODE THEREOF CONNECTED TO THE ELECTRODE OF OPPOSITE POLARITY OF THE OTHER SAID DIODE, D.C. BIAS MEANS CONNECTED TO THE OTHER ELECTRODE OF EACH SAID DIODE WHEREBY THE APPLIED VOLTAGE ON EACH SAID DIODE IS IN THE NEGATIVE NON-CONDUCTING REGION BETWEEN ZERO POTENTIAL AND THE ZENER POTENTIAL, A PAIR OF CAPACITIVE MEANS SERIALLY INTERCONNECTING BETWEEN SAID OTHER ELECTRODES OF SAID PAIR OF DIODES, INPUT CIRCUIT MEANS COUPLED TO THE COMMON CONNECTION OF SAID FIRST NAMED ELECTRODES OF SAID DIODES AND TO THE COMMON CONNECTION OF SAID CAPACITIVE MEANS FOR APPLYING AN A.C. SIGNAL CROSS SAID DIODES, AND OUTPUT CIRCUIT MEANS COUPLED TO SAID COMMON CONNECTION OF SAID FIRST NAMED ELECTRODES OF SAID DIODES AND TO THE COMMON CONNECTION OF SAID CAPACITIVE MEANS.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-06-07 | 1968-12-07 | 1969-06-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-06-07 | 1972-12-07 | 1973-06-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-06-07 | 1976-12-07 | 1977-06-08 | $7700.00 | Window Closed / Lapsed |