Patent US3124758A successfully refreshed from Google Patents.
US3124758A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transistor switching circuit responsive in push-pull
Assignee: —
•
Filing: —
•
Granted: 1964-03-10
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Expires: 1981-03-10
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:32
CPC Classifications
H; H03; H03K; H03K17/00; H03K17/51; H03K17/56; H03K17/60; H03K17/66; H03K17/665
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
102 words
AN AMPLIFIER OF THE PUSH-PULL OPERATING TYPE COMPRISING, A PAIR OF TRANSISTORS OF LIKE CONDUCTIVITY TYPE AND HAVING BIASING MEANS FOR RENDERING SAID TRANSISTORS OPERABLE, EACH TRANSISTOR HAVING AN EMITTER, A BASE, AND A COLLECTOR, MEANS CONNECTING THE COLLECTOR OF ONE OF SAID TRANSISTORS TO THE EMITTER OF THE OTHER, OUTPUT MEANS COUPLED TO THE COMMON CONNECTION OF SAID TWO TRANSISTORS, MEANS FOR APPLYING AN INPUT SIGNAL ONLY TO THE BASE OF SAID ONE TRANSISTOR, AND UNIDIRECTIONAL CONDUCTING MEANS PROVIDING A SUBSTANTIALLY CONSTANT VOLTAGE DROP COUPLED BETWEEN THE COLLECTOR OF SAID ONE TRANSISTOR AND THE BASE OF THE OTHER OF SAID TRANSISTORS.
Claim 2
Dependent Claim
102 words
AN AMPLIFIER OF THE PUSH-PULL OPERATING TYPE COMPRISING, A PAIR OF TRANSISTORS OF LIKE CONDUCTIVITY TYPE AND HAVING BIASING MEANS FOR RENDERING SAID TRANSISTORS OPERABLE, EACH TRANSISTOR HAVING AN EMITTER, A BASE, AND A COLLECTOR, MEANS CONNECTING THE COLLECTOR OF ONE OF SAID TRANSISTORS TO THE EMITTER OF THE OTHER, OUTPUT MEANS COUPLED TO THE COMMON CONNECTION OF SAID TWO TRANSISTORS, MEANS FOR APPLYING AN INPUT SIGNAL ONLY TO THE BASE OF SAID ONE TRANSISTOR, AND UNIDIRECTIONAL CONDUCTING MEANS PROVIDING A SUBSTANTIALLY CONSTANT VOLTAGE DROP COUPLED BETWEEN THE COLLECTOR OF SAID ONE TRANSISTOR AND THE BASE OF THE OTHER OF SAID TRANSISTORS.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-03-10 | 1967-09-09 | 1968-03-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-03-10 | 1971-09-09 | 1972-03-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-03-10 | 1975-09-09 | 1976-03-10 | $7700.00 | Window Closed / Lapsed |