Patent US3172051A successfully refreshed from Google Patents.
US3172051A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Emitter follower amplifier
Assignee: COMPUTER CONTROL COMPANY Inc
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Filing: 1962-07-23
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Granted: 1965-03-02
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Expires: 1982-07-23
Abstract
No abstract record available.
Inventors
- 👤 Robert C Baron
- 👤 Bothwell Theodore Paul
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:17
CPC Classifications
H; H03; H03F; H03F3/00; H03F3/50
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
122 words
AN AMPLIFIER CIRCUIT COMPRISING, IN COMBINATION, FIRST AND SECOND TRANSISTOR MEANS OF OPPOSITE CONDUCTIVITY TYPES, SAID TRANSISTOR MEANS BEING CONNECTED IN EMITTER FOLLOWER CONFIGURATION WITH THE EMITTER OF THE FIRST TRANSISTOR MEANS BEING CONNECTED TO THE BASE OF SAID SECOND TRANSISTOR MEANS, THE BASE OF SAID FIRST TRANSISTOR MEANS BEING A TERMINAL FOR INPUT SIGNALS AND THE EMITTER OF SAID SECOND TRANSISTOR MEANS BEING A TERMINAL FOR OUTPUT SIGNALS; A PAIR OF UNILATERAL CURRENT CONDUCTING MEANS HAVING A LIKE ELECTRODE OF EACH CONNECTED TO ONE ANOTHER, AND BEING CONNECTED IN SERIES BETWEEN THE BASE OF SAID FIRST TRANSISTOR MEANS AND THE EMITTER OF SAID SECOND TRANSISTOR MEANS; AND MEANS FOR CONNECTING SAID LIKE ELECTRODES TO THE BASE OF SAID SECOND TRANSISTOR MEANS.
Claim 2
Dependent Claim
122 words
AN AMPLIFIER CIRCUIT COMPRISING, IN COMBINATION, FIRST AND SECOND TRANSISTOR MEANS OF OPPOSITE CONDUCTIVITY TYPES, SAID TRANSISTOR MEANS BEING CONNECTED IN EMITTER FOLLOWER CONFIGURATION WITH THE EMITTER OF THE FIRST TRANSISTOR MEANS BEING CONNECTED TO THE BASE OF SAID SECOND TRANSISTOR MEANS, THE BASE OF SAID FIRST TRANSISTOR MEANS BEING A TERMINAL FOR INPUT SIGNALS AND THE EMITTER OF SAID SECOND TRANSISTOR MEANS BEING A TERMINAL FOR OUTPUT SIGNALS; A PAIR OF UNILATERAL CURRENT CONDUCTING MEANS HAVING A LIKE ELECTRODE OF EACH CONNECTED TO ONE ANOTHER, AND BEING CONNECTED IN SERIES BETWEEN THE BASE OF SAID FIRST TRANSISTOR MEANS AND THE EMITTER OF SAID SECOND TRANSISTOR MEANS; AND MEANS FOR CONNECTING SAID LIKE ELECTRODES TO THE BASE OF SAID SECOND TRANSISTOR MEANS.
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) | 1968-03-01 | 1968-08-31 | 1969-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-01 | 1972-08-31 | 1973-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-01 | 1976-08-31 | 1977-03-02 | $7700.00 | Window Closed / Lapsed |