Patent US3274397A successfully refreshed from Google Patents.
US3274397A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Solid state and hybrid modulators
Assignee: Individual
•
Filing: 1963-02-18
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Granted: 1966-09-20
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Expires: 1983-02-18
Abstract
No abstract record available.
Inventors
- 👤 Earl H Heckman
- 👤 Martin L Jones
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 05:01
CPC Classifications
H; H03; H03K; H03K3/00; H03K3/02; H03K3/35; H03K3/352; H03K3/53; H03K3/57
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
134 words
A MODULATING CIRCUIT COMPRISING: A LOAD CIRCUIT HAVING A NEGATIVE BIAS THEREON FROM A NEGATIVE VOLTAGE SOURCE THROUGH A BIASING RESISTOR; A FIRST CIRCUIT INCLUDING A PLURALITY OF 4-LAYER SEMICONDUCTOR SWITCHING DIODES IN A SERIES STRING COUPLED IN SERIES WITH A FIRST ELECTRON EMISSION MEANS HAVING CONDUCTOR CONTROL ELECTRODE MEANS, THIS SERIES STRING OF DIODES AND ELECTRON EMISSION MEANS BEING COUPLED BETWEEN A POSITIVE VOLTAGE SOURCE AND SAID LOAD CIRCUIT WITH SAID FIRST ELECTRON EMISSION MEANS ADJACENT SAID VOLTAGE SOURCE AND SAID DIODES ADJACENT SAID LOAD; INDUCTION MEANS COUPLING SAID SERIES STRING OF DIODES AND ELECTRON EMISSION MEANS TO SWITCH SAME INTO CONDUCTION UPON THE APPLICATION OF A FIRST PULSE THERETO; A SECOND CIRCUIT INCLUDING A SECOND ELECTRON EMISSION MEANS HAVING CONDUCTION ELECTRODES COUPLED TO SAID DIODES AND FIRST ELECTRON EMISSION MEANS STRING AND
Claim 2
Dependent Claim
134 words
A MODULATING CIRCUIT COMPRISING: A LOAD CIRCUIT HAVING A NEGATIVE BIAS THEREON FROM A NEGATIVE VOLTAGE SOURCE THROUGH A BIASING RESISTOR; A FIRST CIRCUIT INCLUDING A PLURALITY OF 4-LAYER SEMICONDUCTOR SWITCHING DIODES IN A SERIES STRING COUPLED IN SERIES WITH A FIRST ELECTRON EMISSION MEANS HAVING CONDUCTOR CONTROL ELECTRODE MEANS, THIS SERIES STRING OF DIODES AND ELECTRON EMISSION MEANS BEING COUPLED BETWEEN A POSITIVE VOLTAGE SOURCE AND SAID LOAD CIRCUIT WITH SAID FIRST ELECTRON EMISSION MEANS ADJACENT SAID VOLTAGE SOURCE AND SAID DIODES ADJACENT SAID LOAD; INDUCTION MEANS COUPLING SAID SERIES STRING OF DIODES AND ELECTRON EMISSION MEANS TO SWITCH SAME INTO CONDUCTION UPON THE APPLICATION OF A FIRST PULSE THERETO; A SECOND CIRCUIT INCLUDING A SECOND ELECTRON EMISSION MEANS HAVING CONDUCTION ELECTRODES COUPLED TO SAID DIODES AND FIRST ELECTRON EMISSION MEANS STRING AND
References Cited (Backward Citations)
US3079514A
Cited
US3184653A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-09-19 | 1970-03-21 | 1970-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-19 | 1974-03-21 | 1974-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-19 | 1978-03-21 | 1978-09-20 | $7700.00 | Window Closed / Lapsed |