Vehicle digital anti-theft system
CA 1113588 A · Owner: Kilgore, Woodson B. · Inventors: Kilgore, Woodson B.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract of the Disclosure An anti-theft device for an automotive vehicle or any internal combustion engine turned over by a starter in which electrical energy is connected to the starter only at such times as several rotatable digital members are arranged in selected positions. The digital control means may be positioned in either of two alternative coded positions to energize the starter depending upon the position of a hidden switch which the user manipulates according to the particular code he desires. The digital means are connected to the starter such that an unauthorized "hot wire" creates a short circuit for the thief. Similarly, the ignition coil is so wired as to provide a short …
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted December 1, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 1, 1998.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.