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Expired Canadian patentCanada

Communications network

CA 2444720 C · Owner: Rizzo, Michael · Inventors: Rudkin, Steven; Carver, Andrew Richard; Rizzo, Michael

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 method of providing personalised content over a communications network such as the Internet is disclosed. Providing personalised content includes both generating content which depends on the recipient of that content and delivering that content in a manner that depends on the recipient. Although methods of providing personalised content are known none of those methods , provide a mechanism for deciding when and how to personalise content. By enabling a content provider to send policy data to local caches and having a local agent computer arrange for content files to be delivered in accordance with those policy files, such a mechanism is provided.

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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 19, 2002 and granted April 12, 2016. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 19, 2022.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 19, 2024.
  • 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 19, 2002
GrantedApril 12, 2016
Term endedApril 19, 2022
Patent numberCA 2444720 C
Classification (IPC)H04L67/30 +2 more

Timeline

Timeline From CIPO dates

2003200520072009201120132015201720192021Application filedApril 19, 2002Patent grantedApril 12, 2016Term endedApril 19, 2022

Sources & verification

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