Electronic book
CA 2108554 A1 · Owner: Futech Interactive Products, Inc. · Inventors: Mctaggart, Stephen I.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An electronic book apparatus that comprises multiple pages (122) with printed information (126), visual signal means (125) for identifying the printed information in a sequentially organized manner, synchronized audio signal means (154) for describing and further identifying the information concurrently with the visual signal means, and switching means (127) for electronically controlling the generation and transmission of these signals when each particular page is opened for viewing. Each page of the electronic book includes a laminated sheet (124), on which the printed material is arranged, and an electronic backdrop (121) containing the visual signal means for display through 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 April 14, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 14, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 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.