US3156872A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Unilateralized transistor relay system
Assignee: Blonder Tongue Electronics
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Filing: 1960-12-19
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Granted: 1964-11-10
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Expires: 1980-12-19
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 |