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Expired Canadian patentCanada

Product recommendations based on collaborative filtering of user data

CA 2613699 C · Owner: Stoppelman, Michael · Inventors: Stoppelman, Michael

CIPO record

Overview

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Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

A system gathers user behavior data from a group of web retailers and/or nonweb retailers, analyzes the user behavior data to identify product recommendations for products offered by , the web retailers and provides one of the identified product recommendations in connection , with a product page associated with one of the web retailers.

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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 June 29, 2006 and granted July 24, 2018. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 29, 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.
FiledJune 29, 2006
GrantedJuly 24, 2018
Term endedJune 29, 2026
Patent numberCA 2613699 C
Classification (IPC)—

Timeline

Timeline From CIPO dates

2007200920112013201520172019202120232025Application filedJune 29, 2006Patent grantedJuly 24, 2018Term endedJune 29, 2026

Sources & verification

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