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:
Sep. 03, 1985
Filed:
Jul. 19, 1982
Allan B Crites, Elk Grove Village, IL (US);
Other;
Abstract
A vehicle alarm system sensing unauthorized use of the vehicle and providing a warning signal for a predetermined warning time interval which may be extended as desired. A latching circuit includes a bistable flip-flop with a capacitor discharging through a voltage divider circuit to define an extended warning time interval. Logic gates are switched to change the voltage divider circuit voltage reference levels to charge the capacitor during a predetermined exit time interval to inhibit warning signal actuation when exiting the vehicle. A re-entry timer is included to inhibit warning signal actuation when re-entering the vehicle.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile