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:
Apr. 18, 1989
Filed:
Jul. 18, 1988
Applicant:
Inventor:
John L Evans, Huntsville, AL (US);
Assignee:
Chrysler Motors Corporation, Highland Park, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B60R / ; B60K / ;
U.S. Cl.
CPC ...
180289 ; 180281 ;
Abstract
Automatic locking of the vehicle door locks by a relay controlled by sine and cosine voltage signals from a frequency to voltage (F/V) converter. A pulse-train signal whose pulse repetition rate varies with the speed of the vehicle is used to supply frequency information to the F/V converter.
Quick Actions:
Evans, John. (1989). Vehicle integral speedometer and automatic door lock system (U.S. Patent No. 4821836). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4821836
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile