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Expired Canadian patentCanada

Categorizing objects, such as documents and/or clusters, with respect to a taxonomy and data structures derived from such categorization

CA 2605747 C · Owner: Google, Inc. · Inventors: Maxwell, Andrew; Gehrking, David; Law, Ching

CIPO record

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Abstract From the Canadian patent

A Website may be automatically categorized by (a) accepting Website information, (b) determining a set of scored clusters (e.g. semantic term co-, occurrence, etc.) for the Website using the Website information and (c) , determining at least one category (e.g. a vertical category) of a predefined taxonomy using at least some of the set of clusters. A semantic cluster (e.g. a term co-occurrence cluster) may be automatically associated with one or more categories (e.g. vertical categories) of a predefined taxonomy by (a) accepting a semantic cluster, (b) identifying a set of a one or more scored concepts using the accepted cluster, (c) identifying a set of one or more categories using …

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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 April 24, 2006 and granted April 21, 2015. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 24, 2026.
  • 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.
FiledApril 24, 2006
GrantedApril 21, 2015
Term endedApril 24, 2026
Patent numberCA 2605747 C
Classification (IPC)G06F7/00

Timeline

Timeline From CIPO dates

2007200920112013201520172019202120232025Application filedApril 24, 2006Patent grantedApril 21, 2015Term endedApril 24, 2026

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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.