Non-distorting blind spot mirror
CA 2189165 C · Owner: Ung, Ly Weng · Inventors: Ung, Ly Weng
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A non-distorting blind spot mirror unit which employs a triangular prism mirror (30) mounted adjacent a driver (D) of a vehicle to enable the driver to view the blind spot area without any distortion of vision. The triangular prismmirror unit has three plane surfaces (31 32, 33), the rear surface (31) being, blocked. By blocking the rear surface of the prism the image entering one of, the front surfaces (for example 32) will appear on the other front surface (for example 33). Therefore the triangular prism mirror when properly mounted, provides a clear vision for the driver of a vehicle giving access to the blind spot area.
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 July 31, 1995 and granted April 6, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 31, 2015.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 31, 2017.
- 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.