US3553641A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vehicle theft alarm and control device
Assignee: Individual
•
Filing: 1967-11-15
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Granted: 1971-01-05
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Expires: 1987-11-15
Abstract
Abstract THE TRIGGER CIRCUIT OF A SILICON-CONTROLLED RECTIFIER IS MANUALLY INTRODUCED INTO THE ELECTRICAL SYSTEM OF AN INTERNAL COMBUSTION ENGINE BY THE FIRST POSITION OF A TWO POSITION SWITCH SO THAT CLOSING OF THE IGNITION CIRCUIT PROVIDES A TRIGGERING PULSE WHICH BIASES THE SILICONCONTROLLED RECTIFIER INTO CONDUCTION TO SUPPLY CURRENT TO A HORN. THE RESISTANCE OF THE TRIGGER CIRCUIT ALSO PREVENTS FUEL IGNITION AND THE SWITCH MUST BE MOVED INTO ITS SECOND POSITION TO PERMIT IGNITION AND TO DEENERGIZE THE HORN.
Inventors
- 👤 Edward L Moragne
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 00:32
CPC Classifications
B; B60; B60R; B60R25/00; B60R25/10; B60R25/1003
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-01-04 | 1974-07-06 | 1975-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-04 | 1978-07-06 | 1979-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-04 | 1982-07-06 | 1983-01-05 | $7700.00 | Window Closed / Lapsed |