Patent US3087090A successfully refreshed from Google Patents.
US3087090A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ignition system
Assignee: Motors Liquidation Co
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Filing: 1961-03-13
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Granted: 1963-04-23
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Expires: 1981-03-13
Abstract
No abstract record available.
Inventors
- 👤 Richard L Konopa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:57
CPC Classifications
F; F02; F02P; F02P3/00; F02P3/02; F02P3/04; F02P3/0407; F02P3/0435
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
139 words
AN ELECTRICAL IGNITION SYSTEM FOR AN INTERNAL COMBUSTION ENGINE, COMPRISING, A SOURCE OF VOLTAGE, A SPARK DISCHARGE DEVICE, AN IGNITION COIL HAVING A PRIMARY WINDING AND A SECONDARY WINDING, MEANS CONNECTING SAID SECONDARY WINDING WITH SAID SPARK DISCHARGE DEVICE, A FIRST TRANSISTOR HAVING EMITTER, COLLECTOR AND BASE ELECTRODES, MEANS CONNECTING THE EMITTER-COLLECTOR CIRCUIT OF SAID FIRST TRANSISTOR BETWEEN SAID VOLTAGE SOURCE AND THE PRIMARY WINDING OF SAID IGNITION COIL, A CAPACITOR, A CHARGING CIRCUIT FOR CHARGING SAID CAPACITOR FROM SAID VOLTAGE SOURCE INCLUDING THE EMITTER-BASE CIRCUIT OF SAID FIRST TRANSISTOR AND A FIRST RESISTOR, A SECOND TRANSISTOR HAVING EMITTER, BASE AND COLLECTOR ELECTRODES, MEANS CONNECTING THE EMITTER ELECTRODES OF SAID TRANSISTORS TOGETHER, A DISCHARGING CIRCUIT FOR SAID CAPACITOR INCLUDING THE EMITTER-COLLECTOR CIRCUIT OF SAID SECOND TRANSISTOR AND A SECOND RESISTOR CONNECTED BETWEEN ONE SIDE OF SAID SOURCE OF VOLTAGE
Claim 2
Dependent Claim
139 words
AN ELECTRICAL IGNITION SYSTEM FOR AN INTERNAL COMBUSTION ENGINE, COMPRISING, A SOURCE OF VOLTAGE, A SPARK DISCHARGE DEVICE, AN IGNITION COIL HAVING A PRIMARY WINDING AND A SECONDARY WINDING, MEANS CONNECTING SAID SECONDARY WINDING WITH SAID SPARK DISCHARGE DEVICE, A FIRST TRANSISTOR HAVING EMITTER, COLLECTOR AND BASE ELECTRODES, MEANS CONNECTING THE EMITTER-COLLECTOR CIRCUIT OF SAID FIRST TRANSISTOR BETWEEN SAID VOLTAGE SOURCE AND THE PRIMARY WINDING OF SAID IGNITION COIL, A CAPACITOR, A CHARGING CIRCUIT FOR CHARGING SAID CAPACITOR FROM SAID VOLTAGE SOURCE INCLUDING THE EMITTER-BASE CIRCUIT OF SAID FIRST TRANSISTOR AND A FIRST RESISTOR, A SECOND TRANSISTOR HAVING EMITTER, BASE AND COLLECTOR ELECTRODES, MEANS CONNECTING THE EMITTER ELECTRODES OF SAID TRANSISTORS TOGETHER, A DISCHARGING CIRCUIT FOR SAID CAPACITOR INCLUDING THE EMITTER-COLLECTOR CIRCUIT OF SAID SECOND TRANSISTOR AND A SECOND RESISTOR CONNECTED BETWEEN ONE SIDE OF SAID SOURCE OF VOLTAGE
References Cited (Backward Citations)
US2953719A
Cited
FR1211857A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-04-22 | 1966-10-22 | 1967-04-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-22 | 1970-10-22 | 1971-04-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-22 | 1974-10-22 | 1975-04-23 | $7700.00 | Window Closed / Lapsed |