Patent US3086787A successfully refreshed from Google Patents.
Patent US3244906A successfully refreshed from Google Patents.
US3244906A
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Transistor monostable multivibrator circuit
Assignee: North American Aviation Corp
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Filing: 1962-12-04
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Granted: 1966-04-05
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Expires: 1982-12-04
Abstract
No abstract record available.
Inventors
- 👤 Ivan G Goering
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:09
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
173 words
A MONOSTABLE MULTIVIBRATOR CIRCUIT COMPRISING FIRST AND SECOND TRANSISTORS OF OPPOSITE CONDUCTIVITY TYPES EACH OF SAID TRANSISTORS HAVING A BASE, AN EMITTER AND A COLLECTOR, MEANS PROVIDING DIRECT CURRENT BIASING POTENTIALS FOR THE EMITTERS AND COLLECTORS OF SAID TRANSISTORS, MEANS FOR PROVIDING DIRECT CURRENT BIASING POTENTIAL FOR THE BASE ELECTRODE OF SAID SECOND TRANSISTOR TO RENDER SAID SECOND TRANSISTOR NORMALLY NON-CONDUCTIVE, DIRECT CURRENT CONDUTIVE MEANS COUPLING THE COLLECTOR OF SAID SECOND TRANSISTOR TO THE BASE OF SAID FIRST TRANSISTOR TO RENDER SAID FIRST TRANSISTOR NON-CONDUCTIVE WHILE SAID SECOND TRANSISTOR IS NON-CONDUCTIVE, A TIMING CIRCUIT CONNECTED BETWEEN THE COLLECTOR OF SAID FIRST TRANSISTOR AND THE BASE OF SAID SECOND TRANSISTOR, SAID TIMING CIRCUIT INCLUDING AN ELECTRICAL ENERGY STORAGE ELEMENT IN SERIES WITH AN IMPEDANCE ELEMENT, MEANS CONNECTED TO THE BASE ELECTRODE OF ONE OF SAID TRANSISTORS FOR APPLYING A TRIGGER PULSE THERETO TO RENDER SAID TRANSISTORS CONDUCTIVE, THEREBY PROVIDING A DISCHARGE PATH FOR ELECTRICAL ENERGY STORAGE ELEMENT THROUGH SAID IMPEDANCE ELEMENT AND SAID FIRST TRANSISTOR AND THROUGH THE BASE-TO-EMITTER JUNCTION OF SAID SECOND TRANSISTOR,
Claim 2
Dependent Claim
173 words
A MONOSTABLE MULTIVIBRATOR CIRCUIT COMPRISING FIRST AND SECOND TRANSISTORS OF OPPOSITE CONDUCTIVITY TYPES EACH OF SAID TRANSISTORS HAVING A BASE, AN EMITTER AND A COLLECTOR, MEANS PROVIDING DIRECT CURRENT BIASING POTENTIALS FOR THE EMITTERS AND COLLECTORS OF SAID TRANSISTORS, MEANS FOR PROVIDING DIRECT CURRENT BIASING POTENTIAL FOR THE BASE ELECTRODE OF SAID SECOND TRANSISTOR TO RENDER SAID SECOND TRANSISTOR NORMALLY NON-CONDUCTIVE, DIRECT CURRENT CONDUTIVE MEANS COUPLING THE COLLECTOR OF SAID SECOND TRANSISTOR TO THE BASE OF SAID FIRST TRANSISTOR TO RENDER SAID FIRST TRANSISTOR NON-CONDUCTIVE WHILE SAID SECOND TRANSISTOR IS NON-CONDUCTIVE, A TIMING CIRCUIT CONNECTED BETWEEN THE COLLECTOR OF SAID FIRST TRANSISTOR AND THE BASE OF SAID SECOND TRANSISTOR, SAID TIMING CIRCUIT INCLUDING AN ELECTRICAL ENERGY STORAGE ELEMENT IN SERIES WITH AN IMPEDANCE ELEMENT, MEANS CONNECTED TO THE BASE ELECTRODE OF ONE OF SAID TRANSISTORS FOR APPLYING A TRIGGER PULSE THERETO TO RENDER SAID TRANSISTORS CONDUCTIVE, THEREBY PROVIDING A DISCHARGE PATH FOR ELECTRICAL ENERGY STORAGE ELEMENT THROUGH SAID IMPEDANCE ELEMENT AND SAID FIRST TRANSISTOR AND THROUGH THE BASE-TO-EMITTER JUNCTION OF SAID SECOND TRANSISTOR,
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) | 1969-04-04 | 1969-10-04 | 1970-04-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-04 | 1973-10-04 | 1974-04-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-04 | 1977-10-04 | 1978-04-05 | $7700.00 | Window Closed / Lapsed |