US3143667A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Monostable trigger arrangements
Assignee: Compagnie des Machines Bull SA
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Filing: 1962-05-28
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Granted: 1964-08-04
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Expires: 1982-05-28
Abstract
No abstract record available.
Inventors
- 👤 Smithson David John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 17:42
CPC Classifications
H; H03; H03K; H03K3/00; H03K3/02; H03K3/26; H03K3/28; H03K3/281; H03K3/284
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
125 words
IN A TRANSISTOR MONOSTABLE TRIGGER CIRCUIT COMPRISING A FIRST AND A SECOND TRANSISTOR, EACH HAVING BASE, EMITTER AND COLLECTOR ELECTRODES, VOLTAGE SOURCE MEANS AND RESISTORS COUPLED TO ELECTRODES FOR MAINTAINING SAID FIRST TRANSISTOR CONDUCTING AND SAID SECOND TRANSISTOR NON-CONDUCTING IN THE STABLE STATE OF THE CIRCUIT, RESISTOR-CAPACITOR COUPLING MEANS CONNECTED BETWEEN THE COLLECTOR OF SAID FIRST TRANSISTOR AND THE BASE OF SAID SECOND TRANSISTOR, AND INPUT MEANS CONNECTED TO APPLY A TRIGGER PULSE TO THE BASE OF SAID FIRST TRANSISTOR, THE COMBINATION OF A SERIESRESONANT CIRCUIT INCLUDING AN INDUCTOR AND A CAPACITOR SERIES-CONNECTED, ONE PLATE OF SAID CAPACITOR BEING CONNECTED TO THE COLLECTOR OF SAID SECOND TRANSISTOR, THE JUNCTION POINT OF SAID CAPACITOR AND INDUCTOR BEING CONNECTED THROUGH A FIRST UNIDIRECTIONALLY CONDUCTING DEVICE TO THE
Claim 2
Dependent Claim
125 words
IN A TRANSISTOR MONOSTABLE TRIGGER CIRCUIT COMPRISING A FIRST AND A SECOND TRANSISTOR, EACH HAVING BASE, EMITTER AND COLLECTOR ELECTRODES, VOLTAGE SOURCE MEANS AND RESISTORS COUPLED TO ELECTRODES FOR MAINTAINING SAID FIRST TRANSISTOR CONDUCTING AND SAID SECOND TRANSISTOR NON-CONDUCTING IN THE STABLE STATE OF THE CIRCUIT, RESISTOR-CAPACITOR COUPLING MEANS CONNECTED BETWEEN THE COLLECTOR OF SAID FIRST TRANSISTOR AND THE BASE OF SAID SECOND TRANSISTOR, AND INPUT MEANS CONNECTED TO APPLY A TRIGGER PULSE TO THE BASE OF SAID FIRST TRANSISTOR, THE COMBINATION OF A SERIESRESONANT CIRCUIT INCLUDING AN INDUCTOR AND A CAPACITOR SERIES-CONNECTED, ONE PLATE OF SAID CAPACITOR BEING CONNECTED TO THE COLLECTOR OF SAID SECOND TRANSISTOR, THE JUNCTION POINT OF SAID CAPACITOR AND INDUCTOR BEING CONNECTED THROUGH A FIRST UNIDIRECTIONALLY CONDUCTING DEVICE TO THE
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) | 1967-08-04 | 1968-02-03 | 1968-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-08-04 | 1972-02-03 | 1972-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-08-04 | 1976-02-03 | 1976-08-04 | $7700.00 | Window Closed / Lapsed |