Voice book system
CA 2328349 A1 · Owner: Ho, Frederick Pak Wai · Inventors: Ho, Frederick Pak Wai
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A voice book system includes a sound generating device (20) equipped with at least a voice book (10). The voice book includes a front cover (11) a back , cover (12) and a plurality of page sheets (13). The voice book further contains an information storing device (14) for storing a plurality of sound messages with respect to the content of each of the page sheets and a book connector (15) for electrically communicating the information storing device (14) with the sound generating device. The sound generating device (20) includes a housing (21), a book holder (22) provided on the housing for holding the back cover (12) of the voice book on the housing an audio device , (30) for …
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 27, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 27, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 27, 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.