Digital electronic timepiece with multiple display
CA 1089657 A · Owner: Kabushiki Kaisha Daini Seikosha · Inventors: Koike, Mitsuo
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A liquid crystal display device particularly for use in timepieces in which more than one type of information is to be displayed and in which information of one type is presented in a first primary appearance whereas, information of the second type appears in a colour different from the first appearance. The device includes a partial polarizing plate below the liquid crystal which is of a colour transmission different from the main polarizing plate which thus results in the different colour display when the liquid crystal above the partial polarizing plate is actuated.
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 18, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 18, 1997.
- 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.