US3265982A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Common emitter transistor amplifier including a heat sink
Assignee: Hazeltine Research Inc
•
Filing: 1963-10-24
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Granted: 1966-08-09
•
Expires: 1983-10-24
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
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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 |