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Expired Canadian patentCanada

A system for electronic placement and broadcast of an advertisement

CA 2296922 C · Owner: Chatfield, Robert Jeffries · Inventors: Chatfield, Robert Jeffries

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 For Electronic Placement And Broadcast Of An Advertisement A system for placing advertisements and broadcast thereof is disclosed comprising:, a data server, accessible via a plurality of networked computers for, receiving data concerning an advertisement and arranged to validate said data and communicate validated data to at least one processor means;, each processor means being associated with a corresponding media broadcast system and arranged to allocate each advertisement represented by validated data at least one broadcast time and communicate said validated data to layout generation means at each broadcast time;, said layout generation means responsive to the validated data …

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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 January 25, 2000 and granted October 9, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 25, 2020.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 25, 2022.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJanuary 25, 2000
GrantedOctober 9, 2001
Term endedJanuary 25, 2020
Patent numberCA 2296922 C
Classification (IPC)H04L12/18 +2 more

Timeline

Timeline From CIPO dates

2001200320052007200920112013201520172019Application filedJan 25, 2000Patent grantedOct 9, 2001Term endedJan 25, 2020

Sources & verification

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