Portable graphic computer apparatus
CA 2023965 C · Owner: Kokoku Rubber Industry Co. Ltd. · Inventors: Marusawa, Miyuki; Kashii, Masaharu; Iizuka, Yoshio
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A portable graphic computer apparatus is comprised of a tablet for inputting coordinates data, a detecting circuit for detecting the coordinates data inputted by the tablet a video, image data forming circuit for forming video image data corresponding to input coordinates based on the coordinates data by an output signal from the detecting circuit a memory, for storing the video image data a video signal generating, circuit for generating a video signal from the video image data, a sound source, a speaker connected to the sound source an output circuit connected to the video signal generating circuit for outputting the video signal and a cabinet for, accommodating therein elements from the …
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 24, 1990 and granted February 22, 1994. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 24, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 24, 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.