Displaying partial graphs by expanding and collapsing nodes
CA 2097232 C · Owner: Beaudet, Phillip J. · Inventors: Merks, Eduardus Antonious Theodorus; Beaudet, Phillip J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Complex graphs are difficult to display legibly on computer display screens. Attempts have been made in the prior art to collapse or truncate the graphs so as to only display portions of the graph. However, these prior art processes have not been effective in dealing with cyclic or acyclic graphs. The present invention overcomes these problems of the prior art by providing a process in which all nodes affected by the truncation operation are identified and are only removed from the portion of the graph being displayed when their removal will not result in displaying incorrect or false information. The process consists of viewing all nodes interconnected either directly or indirectly to any …
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 28, 1993 and granted January 19, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 28, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 28, 2015.
- 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.