Patent US3238416A successfully refreshed from Google Patents.
US3238416A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Semiconductor ignition system
Assignee: Motors Liquidation Co
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Filing: 1962-12-06
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Granted: 1966-03-01
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Expires: 1982-12-06
Abstract
No abstract record available.
Inventors
- 👤 Gerald O Huntzinger
- 👤 William D Worrell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:08
CPC Classifications
F; F02; F02P; F02P3/00; F02P3/02; F02P3/04; F02P3/045; F02P3/0453
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
136 words
AN IGNITION SYSTEM FOR AN INTERNAL COMBUSTION ENGINE COMPRISING, AN IGNITION TRANSFORMER HAVING A PRIMARY WINDING AND A SECONDARY WINDING, A SOURCE OF A DIRECT CURRENT POWER, MAGNETIC PICK-UP MEANS INCLUDING A PICK-UP COIL SAID MAGNETIC PICK-UP MEANS HAVING A PART WHICH IS ADAPTED TO BE DRIVEN BY THE ENGINE, A FIRST TRANSISTOR HAVING EMITTER, COLLECTOR AND BASE ELECTRODES, MEANS CONNECING THE EMITTER-COLLECTOR CIRCUIT OF SAID FIRST TRANSISTOR IN SERIES WITH SAID SOURCE OF DIRECT CURRENT POWER AND IN SERIES WITH SAID PRIMARY WINDING OF SAID IGNITION TRANSFORMER, A SECOND TRANSISTOR HAVING EMITTER, COLLECTOR AND BASE ELECTRODE, A COUPLING TRANSFORMER HAVING A PRIMARY WINDING AND A SECONDARY WINDING, MEANS CONNECTING SAID SECONDARY WINDING OF THE COUPLING TRANSFORMER ACROSS THE EMITTER AND BASE ELECTRODES OF SAID FIRST TRANSISTOR, MEANS CONNECTING THE PRIMARY WINDING OF SAID COUPLING TRANS-
Claim 2
Dependent Claim
136 words
AN IGNITION SYSTEM FOR AN INTERNAL COMBUSTION ENGINE COMPRISING, AN IGNITION TRANSFORMER HAVING A PRIMARY WINDING AND A SECONDARY WINDING, A SOURCE OF A DIRECT CURRENT POWER, MAGNETIC PICK-UP MEANS INCLUDING A PICK-UP COIL SAID MAGNETIC PICK-UP MEANS HAVING A PART WHICH IS ADAPTED TO BE DRIVEN BY THE ENGINE, A FIRST TRANSISTOR HAVING EMITTER, COLLECTOR AND BASE ELECTRODES, MEANS CONNECING THE EMITTER-COLLECTOR CIRCUIT OF SAID FIRST TRANSISTOR IN SERIES WITH SAID SOURCE OF DIRECT CURRENT POWER AND IN SERIES WITH SAID PRIMARY WINDING OF SAID IGNITION TRANSFORMER, A SECOND TRANSISTOR HAVING EMITTER, COLLECTOR AND BASE ELECTRODE, A COUPLING TRANSFORMER HAVING A PRIMARY WINDING AND A SECONDARY WINDING, MEANS CONNECTING SAID SECONDARY WINDING OF THE COUPLING TRANSFORMER ACROSS THE EMITTER AND BASE ELECTRODES OF SAID FIRST TRANSISTOR, MEANS CONNECTING THE PRIMARY WINDING OF SAID COUPLING TRANS-
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) | 1969-02-28 | 1969-08-30 | 1970-03-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-28 | 1973-08-30 | 1974-03-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-28 | 1977-08-30 | 1978-03-01 | $7700.00 | Window Closed / Lapsed |