Patent US3223938A successfully refreshed from Google Patents.
US3223938A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Emitter follower transistor amplifier
Assignee: Bendix Corp
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Filing: 1962-05-11
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Granted: 1965-12-14
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Expires: 1982-05-11
Abstract
No abstract record available.
Inventors
- 👤 James E Brook
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:48
CPC Classifications
H; H03; H03F; H03F1/00; H03F1/34
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
140 words
AN ELECTRICAL CIRCUIT COMPRSING AN EMITTER FOLLOWER HAVING AN INPUT TERMINAL, AN OUTPUT TERMINAL, A TERMINAL FOR RECEIVING POWER, AND A REFERENCE TERMINAL, LOAD MEANS CONNECTED BETWEEN THE OUTPUT TERMINAL AND THE REFERENCE TERMINAL, A SOURCE OF ELECTRICAL POTENTIAL, A TRANSISTOR HAVING A BASE COUPLED TO THE OUTPUT TERMINAL OF THE EMITTER FOLLWOER FOR RECEIVING A SIGNAL THEREFROM, A COLLECTOR CONNECTED TO THE SOURCE OF ELECTRICAL POTENTIAL, AND AN EMITTER CONNECTED DIRECTLY TO THE POWER TERMINAL OF THE EMITTER FOLLOWER, MEANS CONNECTED BETWEEN THE BASE AND COLLECTOR FOR BAISING THE TRANSISTOR, CAPACIVITE MEANS COUPLING THE EMITTER TO THE REFERENCE TERMINAL OF THE EMITTER FOLLOWER, A REFERENCE POTENTIAL, LOAD MEANS INCLUDING A RESISTOR CONNECTING THE REFERENCE TERMINAL TO THE REFERENCE POTENTIAL, SAID CAPACITIVE MEANS CONDUCTING ALTERNATING SIGNALS FROM THE EMITTER TO PROVIDE AN OUTPUT SIGNAL ACROSS THE LAST MENTIONED LOAD 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) | 1968-12-13 | 1969-06-14 | 1969-12-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-13 | 1973-06-14 | 1973-12-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-13 | 1977-06-14 | 1977-12-14 | $7700.00 | Window Closed / Lapsed |