Automatic mirror positioning system for truck-trailers and the like
CA 2175140 C · Owner: Rouleau, Jean · Inventors: Rouleau, Jean
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An automatic mirror positioning system is intended for tractor-trailer vehicles such as a tractor provided with a semi-trailer. The tractor includes a fifth wheel used to couple the trailer to the tractor. The system comprises an angle detection unit to measure a relative angular pivot between the tractor and the trailer a computer for interpreting data received from the detection unit and a mirror assembly which includes a rotatable mirror which is operated by the signals received from the computer whereby the system modifies the positions of the exterior rearview mirrors of the tractor in view of the relative position of the tractor and the trailer in order that the driver can view the …
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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
- Filed April 26, 1996 and granted June 19, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 26, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 26, 2018.
- 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.