Dial number generator
CA 2023357 C · Owner: Matsuda, Toshihiro · Inventors: Matsumoto, Masafumi; Matsuda, Toshihiro
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A dial number generator includes a plurality of cards having a display section on which a large number of subscribers are symbolically displayed and an identification section for identifying the type of the card. The generator also includes a main body, in which the plurality of cards are housed in a cavity, which generates a dial signal in facsimile transmission, etc. The main body has a transparent touch panel by which the symbolic display of one card which is housed can be selectively pressed from the outside of the main body, a detection device capable of identifying the type of the one card, and a device for generating a dial number of subscriber to be called corresponding to a signal …
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 August 15, 1990 and granted June 7, 1994. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 15, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 15, 2012.
- 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.