User interface having simultaneously movable tools and cursor
CA 2124505 C · Owner: Bier, Eric A. · Inventors: Bier, Eric A.; Buxton, William A. S.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A user interface technique operates in the environment of a processor-controlled machine for executing a program that operates on a set of underlying data and displays a visible representation thereof. The user simultaneously and independently moves the tools with one hand normally the, non-dominant hand (e.g. a right-handed user's left hand) and operates on the visible representation with the other normally the dominant hand. In a, specific implementation the input devices include a trackball for positioning the tools and a mouse for positioning a cursor and initiating actions.
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 May 27, 1994 and granted January 4, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 27, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 27, 2016.
- 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.