Control system for automotive vehicle headlamps and other vehicle equipment
CA 2127089 C · Owner: Gentex Corporation · Inventors: Bechtel, Jon H.; Rumsey, Wayne J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A control system is provided for controlling the energization of the headlamps on a first automotive vehicle the headlamps being electrically energizable and each having a high beam state and a low beam state. The system includes means for collecting light emanating from a second vehicle and means for collecting ambient light. Sensing means is provided which is effective to selectively sense the intensity of the collected light emanating from the second vehicle and the collected ambient light. In addition the system includes means controlling the state of the beams of the headlamps as a function of the sensed intensity of the beam of light emanating from said second vehicle and means …
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
- Filed June 29, 1994 and granted December 14, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 29, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 29, 2016.
- 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.