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US3265982A Expired / Lapsed US ⏱️ 0.0 years remaining

Common emitter transistor amplifier including a heat sink

Assignee: Hazeltine Research Inc
•
Filing: 1963-10-24
•
Granted: 1966-08-09
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Expires: 1983-10-24
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Abstract

No abstract record available.

Inventors

  • 👤 Carl R Wilhelmsen

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-27 15:07
CPC Classifications
H; H03; H03F; H03F1/00; H03F1/30; H03F1/302; H03F3/00; H03F3/20; H03F3/24; H03F3/245; H10; H10W; H10W40/00; H10W40/10; H10W44/00; H10W44/20; H10W76/00; H10W76/10; H10W76/12; H10W76/13; H10W76/132; H10W72/00; H10W72/50; H10W72/581; H10W90/00; H10W90/701; H10W90/751; H10W90/753; H10W90/754

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 146 words
A TRANSISTOR AMPLIFIER WHEREIN THE TRANSISTOR IS SO CONSTRUCTED THAT THE COLLECTOR METERIAL IS IN PHYSICAL CONTACT WITH THE TRANSISTOR CASE, COMPRISING: MEANS IN PHYSICAL CONTACT WITH AND EXTERNAL TO SAID TRANSISTOR CASE FOR DISSPATING HEAT GENERATED DURING OPERATION OF SAID TRANSISTOR; MEANS COUPLED BETWEEN SAID HEAT DISSIPATING MEANS AND AN ELECTRICAL REFERENCE POTENTIAL CONDUCTOR FOR ELECTRICALLY INSULATING SAID HEAT DISSIPATING MEANS, SAID CASE, AND SAID COLLECTOR FROM SAID ELECTRICAL REFERENCE POTENTIAL CONDUCTOR; MEANS FOR SUPPLYING A BIAS POTENTIAL TO SAID COLLECTOR; MEANS FOR SUPPLYING INPUT SIGNALS TO THE BASE OF SAID TRANSISTOR; AND MEANS COUPLING THE EMITTER OF SAID TRANSISTOR TO SAID ELECTRICAL REFERENCE POTENTIAL CONDUCTOR; WHEREBY THE COMBINATION OF SAID HEAT DISSIPAING MEANS, SAID INSULATING MEANS AND SAID ELECTRICAL REFERENCE POTENTIAL CONDUCTOR PRODUCES A CAPACITIVE REACTANCE BETWEEN THE COLLECTOR AND EMITTER TERMINALS AND SAID TRANSISTOR IS ARRANGED TO OPERATE IN THE COMMON EMITTER CONFIGURATION.
Claim 2
Dependent Claim 146 words
A TRANSISTOR AMPLIFIER WHEREIN THE TRANSISTOR IS SO CONSTRUCTED THAT THE COLLECTOR METERIAL IS IN PHYSICAL CONTACT WITH THE TRANSISTOR CASE, COMPRISING: MEANS IN PHYSICAL CONTACT WITH AND EXTERNAL TO SAID TRANSISTOR CASE FOR DISSPATING HEAT GENERATED DURING OPERATION OF SAID TRANSISTOR; MEANS COUPLED BETWEEN SAID HEAT DISSIPATING MEANS AND AN ELECTRICAL REFERENCE POTENTIAL CONDUCTOR FOR ELECTRICALLY INSULATING SAID HEAT DISSIPATING MEANS, SAID CASE, AND SAID COLLECTOR FROM SAID ELECTRICAL REFERENCE POTENTIAL CONDUCTOR; MEANS FOR SUPPLYING A BIAS POTENTIAL TO SAID COLLECTOR; MEANS FOR SUPPLYING INPUT SIGNALS TO THE BASE OF SAID TRANSISTOR; AND MEANS COUPLING THE EMITTER OF SAID TRANSISTOR TO SAID ELECTRICAL REFERENCE POTENTIAL CONDUCTOR; WHEREBY THE COMBINATION OF SAID HEAT DISSIPAING MEANS, SAID INSULATING MEANS AND SAID ELECTRICAL REFERENCE POTENTIAL CONDUCTOR PRODUCES A CAPACITIVE REACTANCE BETWEEN THE COLLECTOR AND EMITTER TERMINALS AND SAID TRANSISTOR IS ARRANGED TO OPERATE IN THE COMMON EMITTER CONFIGURATION.

References Cited (Backward Citations)

US2817048A Cited
US3068415A Cited
US2967984A Cited
US3187226A Cited
US3128431A Cited
US3183407A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1969-08-08 1970-02-07 1970-08-09 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1973-08-08 1974-02-07 1974-08-09 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1977-08-08 1978-02-07 1978-08-09 $7700.00 Window Closed / Lapsed

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