Patent US760434A successfully refreshed from Google Patents.
Patent US3196338A successfully refreshed from Google Patents.
US3196338A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Amplifying and switching circuit
Assignee: Individual
•
Filing: 1960-08-22
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Granted: 1965-07-20
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Expires: 1980-08-22
Abstract
No abstract record available.
Inventors
- 👤 George S Bahrs
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 21:45
CPC Classifications
G; G01; G01R; G01R23/00; G01R23/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
86 words
A CIRCUIT OF THE CHARACTER DESCRIBED FOR DIRECTING CURRENTS OF OPPOSITE POLARITY TO AN ASSOCIATED ELEMENT AND FOR APPLYING ONE OF SAID CURRENTS TO AN ASSOCIATED LOAD COMPRIING A TRANSISTOR HAVING EMITTER, COLLECTOR AND BASE ELECTRODES, MEANS FOR SERIALLY CONNECTING THE EMIT TER AND COLLECTOR ELECTRODES BETWEEN THE ELEMENT AND THE LOAD, UNI-DIRECTIONAL CURRENT CONDUCTING MEANS CONNECTED BETWEEN EMITTER AND BASE ELECTODES, AND MEANS FOR APPLYING A BIAS VOLTAGE TO THE BASE OF SAID TRANSISTOR WHICH VOLTAGE IS GREATER THAN THE HIGHEST VOLTAGE AT THE LOAD.
Claim 2
Dependent Claim
86 words
A CIRCUIT OF THE CHARACTER DESCRIBED FOR DIRECTING CURRENTS OF OPPOSITE POLARITY TO AN ASSOCIATED ELEMENT AND FOR APPLYING ONE OF SAID CURRENTS TO AN ASSOCIATED LOAD COMPRIING A TRANSISTOR HAVING EMITTER, COLLECTOR AND BASE ELECTRODES, MEANS FOR SERIALLY CONNECTING THE EMIT TER AND COLLECTOR ELECTRODES BETWEEN THE ELEMENT AND THE LOAD, UNI-DIRECTIONAL CURRENT CONDUCTING MEANS CONNECTED BETWEEN EMITTER AND BASE ELECTODES, AND MEANS FOR APPLYING A BIAS VOLTAGE TO THE BASE OF SAID TRANSISTOR WHICH VOLTAGE IS GREATER THAN THE HIGHEST VOLTAGE AT THE LOAD.
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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) | 1968-07-19 | 1969-01-18 | 1969-07-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-07-19 | 1973-01-18 | 1973-07-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-07-19 | 1977-01-18 | 1977-07-20 | $7700.00 | Window Closed / Lapsed |