Patent · US Expired

Electronic card with indicator of normal operation

US5889267A · kind A · utility

9Cited by
13References
14Claims
0Family size

Assignee

Inventors

Key dates

Filing dateSep 11, 1997
Grant dateMar 30, 1999
Priority date
Expiry dateSep 11, 2017

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG06K19/07798
  • WIPO fieldComputer technology
  • WIPO sectorElectrical engineering

Abstract

An electronic card having an electronic control circuit, an elector-optical element configured as a normal operation indicator, and a power supply source. Electrical tracks connect the electronic control circuit with the electro-optical element and the power supply source, and affixing elements attach the electronic card to a substantially planer surface. The electrical tracks having embrittlement grooves which destroy the connections made by the electrical tracks upon removal of the electronic card from the substantially planer surface to which the electronic card is attached. The electronic card is suited for applications in the identification and automatic detection of objects and in particular, stolen vehicles.

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