Wireless keyboard for hand-held computers
CA 2366636 A1 · Owner: Katz, Michael · Inventors: Katz, Michael
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Prior collapsible keyboards for personal digital assistants are overly complex and require different connecting hardware for different handheld devices. The present invention provides a folding keyboard for a hand-held computer or other, information processing devices which folds up simply and in a small size and which is, useful for touch typists. It communicates with the handheld device by a wireless, connection which allows a single keyboard to be used with multiple types of handheld, devices.
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 January 4, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 4, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 4, 2024.
- 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.