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US3156872A Expired / Lapsed US ⏱️ 0.0 years remaining

Unilateralized transistor relay system

Assignee: Blonder Tongue Electronics
•
Filing: 1960-12-19
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Granted: 1964-11-10
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Expires: 1980-12-19
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Abstract

No abstract record available.

Inventors

  • 👤 Ben H Tongue

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-30 21:40
CPC Classifications
H; H03; H03F; H03F3/00; H03F3/26; H03F1/00; H03F1/08; H03F1/14

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 167 words
A TRANSISTOR RELAY SYSTEM FOR OPERATION OVER A BAND OF FREQUENCIES HAVING, IN COMBINATION, A TRANSISTOR RELAY PROVIDED WITH A BASE, AN EMITTER AND A COLLECTOR INHERENTLY HAVING AN EFFECTIVE INTERNAL COLLECTOR-TO-TRUE BASE CAPACITANCE CB''C, A SPREADING RESISTANCE RBB BETWEEN THE TRUE AND PHYSICAL BASE TERMINALS, AN EMITTER-TO-TRUE BASE CAPACITANCE CB''E, SHUNT RESISTANCE RB''E, AND AN EFFECTIVE SOCKET AND HEADER CAPACITANCE AND THE LIKE CBC BETWEEN THE COLLECTOR ELECTRODE AND THE SAID PHYSICAL BASE TERMINAL; THE SYSTEM INCLUDING A LOAD CONNECTED BETWEEN THE COLLECTOR AND EMITTER, A PAIR OF SERIES-CONNECTED CAPACITANCE ELEMENTS CONNECTED BETWEEN THE COLLECTOR AND EMITTER, A FIRST INPUT TERMINAL CONNECTED TO THE POINT OF SERIES CONNECTION OF THE PAIR OF CAPACITANCE ELEMENTS, A SECOND INPUT TERMINAL CONNECTED TO THE SAID PHYSICAL BASE TERMINAL, AND MEANS FOR NEUTRALIZING THE CAPACITANCE CBC OVER THE SAID BAND OF FREQUENCIES, THE RATIO OF THE CAPACITANCE ELEMENTS OF THE PAIR OF CAPACITANCE ELEMENTS BEING ADJUSTED TO CORRESPOND SUBSTANTIALLY TO THAT OF CB''C/CB''E IN ORDER TO UNILATERALIZE THE SAID RELAY.
Claim 2
Dependent Claim 167 words
A TRANSISTOR RELAY SYSTEM FOR OPERATION OVER A BAND OF FREQUENCIES HAVING, IN COMBINATION, A TRANSISTOR RELAY PROVIDED WITH A BASE, AN EMITTER AND A COLLECTOR INHERENTLY HAVING AN EFFECTIVE INTERNAL COLLECTOR-TO-TRUE BASE CAPACITANCE CB''C, A SPREADING RESISTANCE RBB BETWEEN THE TRUE AND PHYSICAL BASE TERMINALS, AN EMITTER-TO-TRUE BASE CAPACITANCE CB''E, SHUNT RESISTANCE RB''E, AND AN EFFECTIVE SOCKET AND HEADER CAPACITANCE AND THE LIKE CBC BETWEEN THE COLLECTOR ELECTRODE AND THE SAID PHYSICAL BASE TERMINAL; THE SYSTEM INCLUDING A LOAD CONNECTED BETWEEN THE COLLECTOR AND EMITTER, A PAIR OF SERIES-CONNECTED CAPACITANCE ELEMENTS CONNECTED BETWEEN THE COLLECTOR AND EMITTER, A FIRST INPUT TERMINAL CONNECTED TO THE POINT OF SERIES CONNECTION OF THE PAIR OF CAPACITANCE ELEMENTS, A SECOND INPUT TERMINAL CONNECTED TO THE SAID PHYSICAL BASE TERMINAL, AND MEANS FOR NEUTRALIZING THE CAPACITANCE CBC OVER THE SAID BAND OF FREQUENCIES, THE RATIO OF THE CAPACITANCE ELEMENTS OF THE PAIR OF CAPACITANCE ELEMENTS BEING ADJUSTED TO CORRESPOND SUBSTANTIALLY TO THAT OF CB''C/CB''E IN ORDER TO UNILATERALIZE THE SAID RELAY.

References Cited (Backward Citations)

US2663766A Cited
US2801299A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1967-11-10 1968-05-11 1968-11-10 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1971-11-10 1972-05-11 1972-11-10 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1975-11-10 1976-05-11 1976-11-10 $7700.00 Window Closed / Lapsed

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