Patent US3171979A successfully refreshed from Google Patents.
US3171979A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Squaring amplifier circuit including two transistors with series resistor and tunnel diode combination connected therebetween
Assignee: L3Harris Interstate Electronics Corp
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Filing: 1962-03-13
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Granted: 1965-03-02
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Expires: 1982-03-13
Abstract
No abstract record available.
Inventors
- 👤 John T Corsiglia
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:01
CPC Classifications
H; H03; H03K; H03K3/00; H03K3/02; H03K3/313; H03K3/315
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
94 words
A SQUARING AMPLIFIER COMPRISING A FIRST TRANSISTOR CONNECTED TO HAVE SIGNAL WAVE FORMS OF VARYING AMPLITUDE APPLIED THERETO, A GROUNDED EMITTER SWITCHING TRANSISTOR, RESISTANCE MEANS TO CONNECT THE BASE OF THE SWITCHING TRANSISTOR TO RECEIVE OUTPUT SIGNALS FROM THE FIRST TRANSITOR, AND TUNNEL DIODE HAVING TWO ELECTRODES, ONE OF SAID ELECTRODES BEING CONNECTED DIRECTLY TO THE JUNCTION OF THE RESISTANCE MEANS AND THE TRANSISTOR BASE AND ITS OTHER ELECTRODE CONNECTED TO A POINT OF FIXED POTENTIAL TO PLACE THE DIODE ACROSS THE INPUT CIRCUIT TO SAID SWITCHING TRANSISTOR AND ACROSS THE OUTPUT CIRCUIT OF
Claim 2
Dependent Claim
94 words
A SQUARING AMPLIFIER COMPRISING A FIRST TRANSISTOR CONNECTED TO HAVE SIGNAL WAVE FORMS OF VARYING AMPLITUDE APPLIED THERETO, A GROUNDED EMITTER SWITCHING TRANSISTOR, RESISTANCE MEANS TO CONNECT THE BASE OF THE SWITCHING TRANSISTOR TO RECEIVE OUTPUT SIGNALS FROM THE FIRST TRANSITOR, AND TUNNEL DIODE HAVING TWO ELECTRODES, ONE OF SAID ELECTRODES BEING CONNECTED DIRECTLY TO THE JUNCTION OF THE RESISTANCE MEANS AND THE TRANSISTOR BASE AND ITS OTHER ELECTRODE CONNECTED TO A POINT OF FIXED POTENTIAL TO PLACE THE DIODE ACROSS THE INPUT CIRCUIT TO SAID SWITCHING TRANSISTOR AND ACROSS THE OUTPUT CIRCUIT OF
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-03-01 | 1968-08-31 | 1969-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-01 | 1972-08-31 | 1973-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-01 | 1976-08-31 | 1977-03-02 | $7700.00 | Window Closed / Lapsed |