Vehicular safety device
CA 1101522 A · Owner: Walden, Michael D. · Inventors: Walden, Michael D.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This disclosure pertains to a vehicular safety device utilizing a fog sensing apparatus for detecting the presence of for immediately preceding the foremost portions of the vehicle. When fog is detected the braking system of the vehicle is, gradually but forcibly brought into play reducing the speed of the vehicle to a preset maximum determined by a governor operated by the engine. A control wait is concurrently activated which causes the rearmost lamps of the vehicle intermittently to energize and automatically altering the mode of operation of the headlamps of the vehicle for a time period equal to the continual sensing of fog.
Read the whole patent
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 May 19, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 19, 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.