Data processor with window based display means for parent-child tasks
CA 2020518 C · Owner: International Business Machines Corporation · Inventors: Vaughton, Matthew Kelvin
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A data processing system having a window based display and a processor executing a plurality of interleaved data processing tasks each having one or more associated display windows, wherein execution of a first task may trigger execution of a second task characterised in that when execution of said first task triggers execution of said second task said processor, uses data identifying said first task's display window(s) to control display of said second task's display window(s) so as to be connected to and move with said first task's display window(s). The disclosed system has the advantage over the prior art in that it provides a visual connection between the windows of the first and …
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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 July 5, 1990 and granted February 16, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 5, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 5, 2012.
- 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.