US3215859A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Field effect transistor gate
Assignee: Radiation Inc
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Filing: 1962-11-20
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Granted: 1965-11-02
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Expires: 1982-11-20
Abstract
No abstract record available.
Inventors
- 👤 Sorchych Donald Rudolph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:09
CPC Classifications
H; H03; H03K; H03K17/00; H03K17/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
128 words
A GATING CIRCUIT FOR AN INPUT VOLTAGE COMPRISING A PAIR OF CASCADED FIELD EFFECT TRANSISTORS, EACH OF SAID TRANSISTORS HAVING A PAIR OF OHMIC ELECTRODES AND A GATE ELECTRODE, ONE OHMIC ELECTRODE OF ONE OF SAID TRANSISTORS BEING RESPONSIVE TO SAID VOLTAGE, AN OUTPUT VOLTAGE BEING DERIVED AT ONE OHMIC ELECTRODE OF THE OTHER TRANSISTOR, THE OTHER OHMIC ELECTRODES OF SAID TRANSISTORS HAVING A COMMON CONNECTION, MEANS FOR COUPLING A CONTROL SIGNAL BETWEEN BOTH SAID GATE ELECTRODES AND SAID COMMON CONNECTION TO RENDER SAID TRANSISTORS IN A HIGH IMPEDANCE STATE, WHEREBY CHARGES ARE ESTABLISHED BETWEEN BOTH THE GATE ELECTRODES AND SAID COMMON CONNECTION, AND MEANS FOR SUBSEQUENTLY ESTABLISHING A LOW IMPEDANCE DISCHARGE PATH FOR THE ESTABLISHED CHARGES AND FOR RENDERING BOTH SAID TRANSISTORS IN A LOW IMPEDANCE STATE.
Claim 2
Dependent Claim
128 words
A GATING CIRCUIT FOR AN INPUT VOLTAGE COMPRISING A PAIR OF CASCADED FIELD EFFECT TRANSISTORS, EACH OF SAID TRANSISTORS HAVING A PAIR OF OHMIC ELECTRODES AND A GATE ELECTRODE, ONE OHMIC ELECTRODE OF ONE OF SAID TRANSISTORS BEING RESPONSIVE TO SAID VOLTAGE, AN OUTPUT VOLTAGE BEING DERIVED AT ONE OHMIC ELECTRODE OF THE OTHER TRANSISTOR, THE OTHER OHMIC ELECTRODES OF SAID TRANSISTORS HAVING A COMMON CONNECTION, MEANS FOR COUPLING A CONTROL SIGNAL BETWEEN BOTH SAID GATE ELECTRODES AND SAID COMMON CONNECTION TO RENDER SAID TRANSISTORS IN A HIGH IMPEDANCE STATE, WHEREBY CHARGES ARE ESTABLISHED BETWEEN BOTH THE GATE ELECTRODES AND SAID COMMON CONNECTION, AND MEANS FOR SUBSEQUENTLY ESTABLISHING A LOW IMPEDANCE DISCHARGE PATH FOR THE ESTABLISHED CHARGES AND FOR RENDERING BOTH SAID TRANSISTORS IN A LOW IMPEDANCE STATE.
References Cited (Backward Citations)
US2980809A
Cited
US3069567A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-11-01 | 1969-05-03 | 1969-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-01 | 1973-05-03 | 1973-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-01 | 1977-05-03 | 1977-11-02 | $7700.00 | Window Closed / Lapsed |