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Expired Canadian patentCanada

Method of personalizing and identifying communications

CA 2475322 C · Owner: Spaey, Frederic A. J. · Inventors: Spaey, Frederic A. J.; West, Stuart J.; Wouters, Marc-Henri J. M. A.

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

What is disclosed is a method of creating and distributing works of art that takes advantage of the possibilities of duplication and distribution offered by modern computing and telecommunication while preserving the rights of the , authors. Unique versions of a work of art are generated from a source variable work of art such that each unique version is perceptibly different from all other unique versions of the work of art. Unique versions can then be distributed to specific users so that specific unique versions are associated with specific unique versions. In the event a unique version is improperly shared, the user associated with the improperly shared unique version can be …

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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 February 7, 2003 and granted August 7, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 7, 2023.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 7, 2025.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledFebruary 7, 2003
GrantedAugust 7, 2012
Term endedFebruary 7, 2023
Patent numberCA 2475322 C
Classification (IPC)G06F21/10

Timeline

Timeline From CIPO dates

2004200620082010201220142016201820202022Application filedFeb 7, 2003Patent grantedAug 7, 2012Term endedFeb 7, 2023

Sources & verification

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