Electronic data storage and display apparatus
CA 2355713 A1 · Owner: Jarman, David Michael · Inventors: Jarman, David Michael
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Apparatus for displaying electronic format data is disclosed. It is particularly useful for displaying text material e.g. as an electronic book. , The apparatus has a casing with a display means such as a screen and a data , transmission/reception means enabling the apparatus to communicate with a source of data and to download data from the source for subsequent display. The data is encrypted for the download and decrypted within the apparatus to enable it to be displayed in clear. The distinctive feature of the invention is the use as an encryption/decryption key of data stored in addresses of a read only memory within the apparatus. Each time data is downloaded from the source, …
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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 20, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 20, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 20, 2021.
- 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.