The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 05, 1997
Filed:
Jul. 26, 1995
Applicant:
Inventors:
James R Geschke, Holland, MI (US);
Thomas R Olson, Holland, MI (US);
Assignee:
Prince Corporation, Holland, MI (US);
Primary Examiner:
Int. Cl.
CPC ...
B60R / ;
U.S. Cl.
CPC ...
340426 ; 3404255 ; 340988 ; 364457 ;
Abstract
An electronic vehicle theft detection system employing a magnetic field sensor for mounting within a vehicle to provide signal information representing the earth's magnetic field. The sensor is coupled to an electrical processing circuit for sampling the data provided by the sensor and for generating a theft alarm signal when the heading of the vehicle has changed due to unauthorized movement of the vehicle.