Illuminated indicator gauge
CA 1113063 A · Owner: Nissan Motor Co. Ltd. · Inventors: Nakamura, Kenji
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An illuminated indicator gauge having a dial plate and a pointer each constructed of a transparent or translucent material and formed with a reflecting surface wherein the rays of light emitted from a light source into the dial plate are conducted toward an outer end portion of the pointer after two reflections at the respective reflecting surfaces of the dial plate and the pointer whereby the pointer is caused to light up in the region of its outer end portion which is formed with a matte surface at which the light rays are diffusely reflected, characterized by light condensing means located between the light source and the reflecting surface of the dial plate so that the light rays …
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 November 24, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 24, 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.