Patent · US Expired

Installable headlight alarm system

US4862140A · kind A · utility

3Cited by
4References
1Claims
0Family size

Inventors

Key dates

Filing dateApr 29, 1988
Grant dateAug 29, 1989
Priority date
Expiry dateApr 29, 2008

Classification

  • Technology area (CPC B)Performing Operations; Transporting
  • CPC primaryB60Q9/001
  • WIPO fieldTransport
  • WIPO sectorMechanical engineering

Abstract

The installable headlight alarm system is a device that detects when the headlights of an automobile are on when the engine is not operating, using only the electrical signals present at the automobile's headlight connector. This method of detection allows the system to be easily installed on any automobile, by attaching it to the connectors of the automobile's headlights.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.