Input apparatus for a computer system
CA 2477966 A1 · Owner: Watling, Michael John · Inventors: Watling, Michael John
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to an input apparatus for a computer system which includes a pointer device operable by a user a symbol display system , adapted to display a plurality of symbols to a user and one or more pointer , selection sensors adapted to sense the selection of one or more symbols by the pointer device. The symbol display system is adapted to display a plurality of input symbols and at least one commit symbol whereby selection of a commit , symbol by the pointer device will cause the last input symbol selected to be supplied by an associated computer system as input. The invention may be particularly suitable for use by members of the disabled and/or aged community.
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 February 28, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 28, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 28, 2025.
- 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.