Squeezable control device for computer display systems
CA 2000035 C · Owner: Wang Laboratories, Inc. · Inventors: Cooper, James L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract of the Disclosure, A squeezable cursor control device provides movement of moveable entities displayed on a computerized display. In one application the squeezable cursor control device provides scrolling of window contents as a function of cursor position relative to the window. The cursor positioned within the window provides short range scrolling upon squeezing of two opposed portions of the control device. The cursor positioned outside the window provides medium and long range scrolling upon squeezing of the control device. Graphical indicators such as directional indications and elevator bars aid selection and specification of medium and long range scrolling. A graphical …
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 October 2, 1989 and granted February 1, 1994. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 2, 2009.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 2, 2011.
- 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.