US3243602A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Silicon controlled gate turn off switch circuit with load connected to interior junction
Assignee: General Electric Co
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Filing: 1962-12-13
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Granted: 1966-03-29
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Expires: 1982-12-13
Abstract
No abstract record available.
Inventors
- 👤 Herbert F Storm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 15:31
CPC Classifications
H; H10; H10D; H10D18/00; H10D18/60; H02; H02M; H02M7/00; H02M7/42; H02M7/44; H02M7/48; H02M7/505; H02M7/515; H03; H03K; H03K17/00; H03K17/51; H03K17/56; H03K17/72; H03K17/73
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
128 words
A NEW AND IMPROVED AMPLIFIER CIRCUIT INCLUDING IN COMBINATION A TURN-OFF SILICON CONTROLLED RECTIFIER COMPRISED BY A FOUR-LAYER, P-N-P-N SEMICONDUCTOR DEVICE HAVING AT LEAST A CATHODE ELECTRODE IN EFFECT CONNECTED TO AN OUTER N LAYER, AN ANODE ELECTRODE IN EFFECT CONNECTED TO AN OUTER P LAYER, AND FIRST AND SECOND GATE TERMINALS CONNECTED TO RESPECTIVE ONES OF THE INNER P AND N GATES OF THE DEVICE, BIASING MEANS OPERATIVELY CONNECTED IN THE ANODE-CATHODE CIRCUIT OF THE DEVICE THROUGH A SOURCE OF ELECTRIC POTENTIAL, LOAD MEANS OPERATIVELY COUPLED THROUGH ONE OF SAID GATES TO SAID SOURCE OF ELECTRIC POTENTIAL, SAID LOAD MEANS AND SAID BIASING MEANS BEING CONNECTED IN PARALLEL CIRCUIT RELATIONSHIP TO SAID SOURCE OF ELECTRIC POTENTIAL, AND A GATE SIGNAL SOURCE OPERATIVELY COUPLED TO THE REMAINING GATE.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-03-28 | 1969-09-27 | 1970-03-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-28 | 1973-09-27 | 1974-03-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-28 | 1977-09-27 | 1978-03-29 | $7700.00 | Window Closed / Lapsed |