Patent US3267397A successfully refreshed from Google Patents.
US3267397A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Variable reactance transistor circuit
Assignee: Individual
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Filing: 1963-05-14
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Granted: 1966-08-16
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Expires: 1983-05-14
Abstract
No abstract record available.
Inventors
- 👤 Dale D Skinner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 23:08
CPC Classifications
H; H03; H03H; H03H11/00; H03H11/46; H03H11/48; H03C; H03C3/00; H03C3/10; H03C3/12; H03C3/14; H03C3/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
186 words
A VARIABLE REACTANCE DEVICE COMPRISING: (A) A TRANSISTOR HAVING A BASE ELECTRODE, AN EMITTER ELECTRODE AND A COLLECTOR ELECTRODE; (B) A PAIR OF INPUT LEADS WITH ONE LEAD CONNECTED SAID EMITTER ELECTRODE AND THE OTHER LEAD CONNECTED TO A POINT OF REFERENCE POTENTIAL; (C) AN INDUCTIVE CIRCUIT CONNECTED BETWEEN THE BASE ELECTRODE AND SAID POINT OF REFERENCE POTENTIAL; (D) CIRCUIT MEANS CONNECTED BETWEEN THE COLLECTOR ELECTRODE AND A POINT OF SUPPLY VOLTAGE FOR PROVIDING A MAXIMUM COLLECTOR CURRENT SO THAT THE TRANSISTOR IS CAPABLE OF OPERATING IN A SATURATED CONDITION; (E) CIRCUIT MEANS CONNECTED BETWEEN THE EMITTER ELECTRODE AND ANOTHER POINT OF SUPPLY VOLTAGE FOR VARYING THE EMITTER CURRENT IN A RANGE WHERE THE RESISTANCE OF SAID DEVICE AS SEEN ACROSS SAID LEADS IS NEGATIVE AND HAS A RATE OF CHANGE WHICH IS LESS THAN THE RATE OF CHANGE OF AN INDUCTIVE REACTANCE AS SEEN ACROSS SAID LEADS, WHEREBY THE CIRCUIT MEANS CONNECTED TO THE EMITTER ELECTRODE CAN BE USED TO EFFECT A LARGE CHANGE IN INDUCTIVE REACTANCE AS SEEN ACROSS SAID INPUT LEADS AS COMPARED TO THE CHANGE OF RESISTANCE AS SEEN ACROSS SAID LEADS.
Claim 2
Dependent Claim
186 words
A VARIABLE REACTANCE DEVICE COMPRISING: (A) A TRANSISTOR HAVING A BASE ELECTRODE, AN EMITTER ELECTRODE AND A COLLECTOR ELECTRODE; (B) A PAIR OF INPUT LEADS WITH ONE LEAD CONNECTED SAID EMITTER ELECTRODE AND THE OTHER LEAD CONNECTED TO A POINT OF REFERENCE POTENTIAL; (C) AN INDUCTIVE CIRCUIT CONNECTED BETWEEN THE BASE ELECTRODE AND SAID POINT OF REFERENCE POTENTIAL; (D) CIRCUIT MEANS CONNECTED BETWEEN THE COLLECTOR ELECTRODE AND A POINT OF SUPPLY VOLTAGE FOR PROVIDING A MAXIMUM COLLECTOR CURRENT SO THAT THE TRANSISTOR IS CAPABLE OF OPERATING IN A SATURATED CONDITION; (E) CIRCUIT MEANS CONNECTED BETWEEN THE EMITTER ELECTRODE AND ANOTHER POINT OF SUPPLY VOLTAGE FOR VARYING THE EMITTER CURRENT IN A RANGE WHERE THE RESISTANCE OF SAID DEVICE AS SEEN ACROSS SAID LEADS IS NEGATIVE AND HAS A RATE OF CHANGE WHICH IS LESS THAN THE RATE OF CHANGE OF AN INDUCTIVE REACTANCE AS SEEN ACROSS SAID LEADS, WHEREBY THE CIRCUIT MEANS CONNECTED TO THE EMITTER ELECTRODE CAN BE USED TO EFFECT A LARGE CHANGE IN INDUCTIVE REACTANCE AS SEEN ACROSS SAID INPUT LEADS AS COMPARED TO THE CHANGE OF RESISTANCE AS SEEN ACROSS SAID LEADS.
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) | 1969-08-15 | 1970-02-14 | 1970-08-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-15 | 1974-02-14 | 1974-08-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-15 | 1978-02-14 | 1978-08-16 | $7700.00 | Window Closed / Lapsed |