US3195064A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transistor power amplifier employing complementary symmetry and negative feedback
Assignee: Individual
•
Filing: 1964-05-28
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Granted: 1965-07-13
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Expires: 1984-05-28
Abstract
No abstract record available.
Inventors
- 👤 Franklin F Offner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 08:18
CPC Classifications
H; H03; H03F; H03F1/00; H03F1/30; H03F1/302; H03F3/00; H03F3/30; H03F3/3066; H03F3/3083; H03F3/3086; H03F3/3088; H03F3/34; H03F3/343; H03F3/45; H03F3/45071
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
149 words
A POWER AMPLIFIER OF THE TRANSISTOR TYPE COMPRISING A FIRST PNP POWER TRANSISTOR HAVING ITS COLLECTOR CONNECTED TO A SOURCE OF NEGATIVE VOLTAGE AND ITS EMITTER CONNECTED TO THE LOAD TERMINAL, A SECOND PNP POWER TRANSISTOR HAVING ITS EMITTER CONNECTED TO A SOURCE OF POSITIVE VOLTAGE AND ITS COLLECTOR CONNECTED TO SAID LOAD TERMINAL, AN NPN TRANSISTOR HAVING ITS COLLECTOR CONNECTED TO THE BASE OF SAID FIRST POWER TRANSISTOR AND ITS EMITTER CONNECTED TO A SOURCE OF NEGAITVE VOLTAGE, A PNP TRANSISTOR HAVING ITS COLLECTOR CONNECTED TO THE BASE OF SAID NPN TRANSISTOR A SECOND NPN TRANSISTOR PNP POWER TRANSISTOR, A CIRCUIT TO THE BASE OF SAID SECOND PNP POWER TRANSISTOR, A CIRCUIT CONNECTION BETWEEN THE EMITTER OF SAID SECOND NPN TRANSISTOR AND THE EMITTER OF SAID PNP TRANSISTOR, AND A SOURCE OF SIGNAL VOLTAGE CONNECTED TO THE BASE OF SAID SECOND NPN TRANSISTOR AND TO SAID PNP TRANSISTOR.
Claim 2
Dependent Claim
149 words
A POWER AMPLIFIER OF THE TRANSISTOR TYPE COMPRISING A FIRST PNP POWER TRANSISTOR HAVING ITS COLLECTOR CONNECTED TO A SOURCE OF NEGATIVE VOLTAGE AND ITS EMITTER CONNECTED TO THE LOAD TERMINAL, A SECOND PNP POWER TRANSISTOR HAVING ITS EMITTER CONNECTED TO A SOURCE OF POSITIVE VOLTAGE AND ITS COLLECTOR CONNECTED TO SAID LOAD TERMINAL, AN NPN TRANSISTOR HAVING ITS COLLECTOR CONNECTED TO THE BASE OF SAID FIRST POWER TRANSISTOR AND ITS EMITTER CONNECTED TO A SOURCE OF NEGAITVE VOLTAGE, A PNP TRANSISTOR HAVING ITS COLLECTOR CONNECTED TO THE BASE OF SAID NPN TRANSISTOR A SECOND NPN TRANSISTOR PNP POWER TRANSISTOR, A CIRCUIT TO THE BASE OF SAID SECOND PNP POWER TRANSISTOR, A CIRCUIT CONNECTION BETWEEN THE EMITTER OF SAID SECOND NPN TRANSISTOR AND THE EMITTER OF SAID PNP TRANSISTOR, AND A SOURCE OF SIGNAL VOLTAGE CONNECTED TO THE BASE OF SAID SECOND NPN TRANSISTOR AND TO SAID PNP TRANSISTOR.
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) | 1968-07-12 | 1969-01-11 | 1969-07-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-07-12 | 1973-01-11 | 1973-07-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-07-12 | 1977-01-11 | 1977-07-13 | $7700.00 | Window Closed / Lapsed |