Using a category to analyze an image showing a graphical representation
CA 2118344 C · Owner: Rao, Satyajit · Inventors: Rao, Satyajit; Mahoney, James V.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Image data define an image that shows an input graphical representation whose configuration represents information. The image can show a sketch for example. The image data are used to obtain category data indicating a category of graphical representations. For example the category data could, indicate any of X-Y graph directed graph, undirected graph, bar graph pie, chart, line graph, scatter plot, circuit diagram flow chart, Venn diagram, state-transition diagram tree, table, matrix, or array. The category data could also indicate a specific category within a generic category such as bar graph or pie chart. The category data can be obtained by determining whether the graphical …
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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 October 18, 1994 and granted September 7, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 18, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 18, 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.