US3200291A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ignition system
Assignee: Eltra Corp
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Filing: 1961-01-23
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Granted: 1965-08-10
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Expires: 1981-01-23
Abstract
No abstract record available.
Inventors
- 👤 Le Roy E Dilger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 02:47
CPC Classifications
F; F02; F02P; F02P3/00; F02P3/02; F02P3/04; F02P3/045; F02P3/0453
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
95 words
AN IGNITION SYSTEM FOR AN INTERNAL COMBUSTION ENGINE HAVING A NUMBER OF SPARK PLUGS COMPRISING, A LOW INDUCTANCE TRANSFORMER HAVING A PRIMARY WINDING AND A SECONDARY WINDING, A UNIDIRECTIONAL VOLTAGE POWER SUPPLY, A TRANSISTOR HAVING ITS EMITTER CONNECTED TO THE POSITIVE TERMINAL OF THE POWER SUPPLY AND ITS COLLECTOR TO ONE END OF THE PRIMARY WINDING, THE OTHER END OF THE PRIMARY WINDING BEING CONNECTED TO THE BEGATIVE TERMINAL OF THE POWER SUPPLY, DIFFERENTIATING CIRCUIT MEANS CONNECTED ACROSS THE POWER SUPPLY AND WITHOUT ANY INPEDANCE COMPONENT INTERPOSED DIRECTLY TO THE BASE OF THE TRANSISTOR TO
Claim 2
Dependent Claim
95 words
AN IGNITION SYSTEM FOR AN INTERNAL COMBUSTION ENGINE HAVING A NUMBER OF SPARK PLUGS COMPRISING, A LOW INDUCTANCE TRANSFORMER HAVING A PRIMARY WINDING AND A SECONDARY WINDING, A UNIDIRECTIONAL VOLTAGE POWER SUPPLY, A TRANSISTOR HAVING ITS EMITTER CONNECTED TO THE POSITIVE TERMINAL OF THE POWER SUPPLY AND ITS COLLECTOR TO ONE END OF THE PRIMARY WINDING, THE OTHER END OF THE PRIMARY WINDING BEING CONNECTED TO THE BEGATIVE TERMINAL OF THE POWER SUPPLY, DIFFERENTIATING CIRCUIT MEANS CONNECTED ACROSS THE POWER SUPPLY AND WITHOUT ANY INPEDANCE COMPONENT INTERPOSED DIRECTLY TO THE BASE OF THE TRANSISTOR TO
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-08-09 | 1969-02-08 | 1969-08-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-09 | 1973-02-08 | 1973-08-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-09 | 1977-02-08 | 1977-08-10 | $7700.00 | Window Closed / Lapsed |