Electronic notebook
CA 2124804 A1 · Owner: Takemoto, Takatoshi · Inventors: Kawashima, Kazunari; Takemoto, Takatoshi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An electronic notebook comprises a plurality of panels (11) bound on one side so that they can be spread display means (12), having a thin-plate-like display (121) disposed on a spread face of each of the panels for displaying an image on the display (121) a, memory (24) for storing data for display by the display means (12), a sensor (13) for detecting a write position of a handwriting operation onto a screen displayed on the display (121) and write, control means (31) responsive to the write position detected by the sensor (13) for sending a signal, to place a picture element at the write position on the display where the writing has been made in a predetermined display state, to 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 December 14, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 14, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 14, 2014.
- 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.