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US3191069A Expired / Lapsed US ⏱️ 0.0 years remaining

Monostable multivibrator utilizing common-base transistor to provide isolation between timing network and switching transistor

Assignee: AT&T Inc
•
Filing: 1963-01-07
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Granted: 1965-06-22
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Expires: 1983-01-07
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Abstract

No abstract record available.

Inventors

  • 👤 Sidney F Sampson

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-31 14:46
CPC Classifications
H; H03; H03K; H03K3/00; H03K3/02; H03K3/26; H03K3/28; H03K3/281; H03K3/284

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 175 words
A MULTIVIBRATOR COMPRISING, IN COMBINATION, FIRST AND SECOND SWITCHING TRANSISTORS, EACH HAVING A CONTROL ELECTRODE AND A TRANSCONDUCTIVE PATH, A SOURCE OF AN OPERATING POTENTIAL, FIRST AND SECOND RESISTORS FOR CONNECTING THE TRANSCONDUCTIVE PATH OF SAID FIRST AND SECOND SWITCHING TRANSISTORS RESPECTIVELY ACROSS SAID SOURCE, A CAPACITOR HAVING FIRST AND SECOND TERMINALS, CIRCUIT MEANS FOR CONNECTING THE FIRST TERMINAL OF SAID CAPACITOR TO THE JUNCTION OF SAID FIRST RESISTOR AND THE TRANSCONDUCTIVE PATH OF SAID FIRST TRANSISTOR, A SOURCE OF A FIRST REFERENCE POTENTIAL, A RESISTIVE CIRCUIT PATH FOR CONNECTING THE SECOND TERMINAL OF SAID CAPACITOR TO SAID SOURCE OF SAID FIRST REFERENCE POTENTIAL, A THIRD TRANSISTOR HAVING A CONTROL CURRENT PATH AND A TRANSCONDUCTIVE PATH, A SOURCE OF A SECOND REFERENCE POTENTIAL, SAID CONTROL CURRENT PATH OF SAID THIRD TRANSISTOR BEING CONNECTED BETWEEN SAID SECOND TERMINAL AND SAID SOURCE OF SAID SECOND REFERENCE POTENTIAL, AND MEANS RESPONSIVE TO CHANGES IN THE CONDUCTIVITY OF THE TRANSCONDUCTIVE PATH OF SAID THIRD TRANSISTOR FOR APPLYING AN ACTUATING POTENTIAL TO THE CONTROL ELECTRODE OF SAID SECOND SWITCHING TRANSISTOR.
Claim 2
Dependent Claim 175 words
A MULTIVIBRATOR COMPRISING, IN COMBINATION, FIRST AND SECOND SWITCHING TRANSISTORS, EACH HAVING A CONTROL ELECTRODE AND A TRANSCONDUCTIVE PATH, A SOURCE OF AN OPERATING POTENTIAL, FIRST AND SECOND RESISTORS FOR CONNECTING THE TRANSCONDUCTIVE PATH OF SAID FIRST AND SECOND SWITCHING TRANSISTORS RESPECTIVELY ACROSS SAID SOURCE, A CAPACITOR HAVING FIRST AND SECOND TERMINALS, CIRCUIT MEANS FOR CONNECTING THE FIRST TERMINAL OF SAID CAPACITOR TO THE JUNCTION OF SAID FIRST RESISTOR AND THE TRANSCONDUCTIVE PATH OF SAID FIRST TRANSISTOR, A SOURCE OF A FIRST REFERENCE POTENTIAL, A RESISTIVE CIRCUIT PATH FOR CONNECTING THE SECOND TERMINAL OF SAID CAPACITOR TO SAID SOURCE OF SAID FIRST REFERENCE POTENTIAL, A THIRD TRANSISTOR HAVING A CONTROL CURRENT PATH AND A TRANSCONDUCTIVE PATH, A SOURCE OF A SECOND REFERENCE POTENTIAL, SAID CONTROL CURRENT PATH OF SAID THIRD TRANSISTOR BEING CONNECTED BETWEEN SAID SECOND TERMINAL AND SAID SOURCE OF SAID SECOND REFERENCE POTENTIAL, AND MEANS RESPONSIVE TO CHANGES IN THE CONDUCTIVITY OF THE TRANSCONDUCTIVE PATH OF SAID THIRD TRANSISTOR FOR APPLYING AN ACTUATING POTENTIAL TO THE CONTROL ELECTRODE OF SAID SECOND SWITCHING TRANSISTOR.

References Cited (Backward Citations)

US3126489A Cited
US2827574A Cited
US2849626A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1968-06-21 1968-12-21 1969-06-22 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1972-06-21 1972-12-21 1973-06-22 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1976-06-21 1976-12-21 1977-06-22 $7700.00 Window Closed / Lapsed

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