Classification of ambiguous geographic references
CA 2593377 C · Owner: Google Inc. · Inventors: Egnor, Daniel
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A location classifier generates location information based on textual strings in input text. The location information defines potential geographical relevance of the input text. In determining the location information the , location classifier may receive at least one geo-relevance profile associated with at least one string in the input text obtain a combined geo-relevance , profile for the document from the at least one geo-relevance profile and , determine geographical relevance of the input text based on the combined georelevance profile.
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 December 30, 2005 and granted May 27, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 30, 2025.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
- 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.