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Expired Canadian patentCanada

Identifying and/or blocking ads such as document-specific competitive ads

CA 2874013 C · Owner: Google Llc · Inventors: Ranganath, Rama; Shivakumar, Narayanan; Axe, Brian

CIPO record

Overview

Drawings and full text

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

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Abstract From the Canadian patent

A content owner partner (e.g. a Website/Web page publisher) can easily block entire broad or narrow categories of ads and can specify objectionable ad content or targeting. Concepts may be associated with a property and ads related to those concepts may be blocked for the given property. Further terms may be associated with a property and ads including any of the terms may be blocked for the given property.

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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 August 24, 2004 and granted July 4, 2017. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 24, 2024.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 24, 2026.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledAugust 24, 2004
GrantedJuly 4, 2017
Term endedAugust 24, 2024
Patent numberCA 2874013 C
Classification (IPC)H04L12/16

Timeline

Timeline From CIPO dates

2005200720092011201320152017201920212023Application filedAug 24, 2004Patent grantedJuly 4, 2017Term endedAug 24, 2024

Sources & verification

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