US3343003A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transistor inductor
Assignee: TDK Micronas GmbH
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Filing: 1964-01-24
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Granted: 1967-09-19
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Expires: 1984-01-24
Abstract
No abstract record available.
Inventors
- 👤 Arseneau Roger Edward
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:29
CPC Classifications
H; H04; H04Q; H04Q3/00; H04Q3/42; H04Q3/52; H04Q3/521; H03; H03H; H03H11/00; H03H11/46; H03H11/48
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
139 words
AN ELECTRONIC NETWORK HAVING A SINGLE INPUT-OUTPUT TERMINAL, A PAIR OF ELECTRONIC DEVICES CONNECTED TO SAID TERMINAL IN A LOW-D.C.-RESISTANCE-HIGH-A.C.-IMPEDANCE CONFIGURATION, ONE OF SAID DEVICES BEING CONNECTED TO CONTROL THE CONDUCTIVITY OF THE OTHER OF SAID DEVICES, BOTH OF SAID DEVICES HAVING BASE, EMITTER, AND COLLECTOR ELECTRODES, SAID ONE DEVICE HAVING AT LEAST A CAPACITIVE ELEMENT CONNECTED BETWEEN THE BASE AND EMITTER ELECTRODES, AND MEANS COMPRISING SAID TWO DEVICES AND RESPONSIVE TO A CHANGE OF CURRENT INTO SAID TERMINAL FOR COMPENSATINGLY CHANGING THE CONDUCTIVITY OF SAID OTHER DEVICE TO COUNTERACT THE CHANGE IN CURRENT INTO SAID TERMINAL, WHEREBY SAID NETWORK SUPPLIES A CONSTANT DIRECT CURRENT TO SAID TERMINAL DESPITE THE VARIATIONS IN AN A.C. SIGNAL APPEARING AT SAID TERMINAL, WHEREIN A FIRST OF SAID DEVICES IS A PNP TRANSISTOR AND A SECOND OF SAID DEVICES IS AN NPN TRANSISTOR.
Claim 2
Dependent Claim
139 words
AN ELECTRONIC NETWORK HAVING A SINGLE INPUT-OUTPUT TERMINAL, A PAIR OF ELECTRONIC DEVICES CONNECTED TO SAID TERMINAL IN A LOW-D.C.-RESISTANCE-HIGH-A.C.-IMPEDANCE CONFIGURATION, ONE OF SAID DEVICES BEING CONNECTED TO CONTROL THE CONDUCTIVITY OF THE OTHER OF SAID DEVICES, BOTH OF SAID DEVICES HAVING BASE, EMITTER, AND COLLECTOR ELECTRODES, SAID ONE DEVICE HAVING AT LEAST A CAPACITIVE ELEMENT CONNECTED BETWEEN THE BASE AND EMITTER ELECTRODES, AND MEANS COMPRISING SAID TWO DEVICES AND RESPONSIVE TO A CHANGE OF CURRENT INTO SAID TERMINAL FOR COMPENSATINGLY CHANGING THE CONDUCTIVITY OF SAID OTHER DEVICE TO COUNTERACT THE CHANGE IN CURRENT INTO SAID TERMINAL, WHEREBY SAID NETWORK SUPPLIES A CONSTANT DIRECT CURRENT TO SAID TERMINAL DESPITE THE VARIATIONS IN AN A.C. SIGNAL APPEARING AT SAID TERMINAL, WHEREIN A FIRST OF SAID DEVICES IS A PNP TRANSISTOR AND A SECOND OF SAID DEVICES IS AN NPN TRANSISTOR.
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) | 1970-09-18 | 1971-03-20 | 1971-09-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-18 | 1975-03-20 | 1975-09-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-18 | 1979-03-20 | 1979-09-19 | $7700.00 | Window Closed / Lapsed |