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Expired Canadian patentCanada

Video synchronisation and information management system

CA 2451984 C · Owner: Veitch, Graham Charles · Inventors: Veitch, Graham Charles; Cameron, Kay Marie; Atkin, Paul Andrew

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Abstract From the Canadian patent

The present invention is adapted to provide a video synchronisation system which can be used to synchronise the execution of a process with the content of video transmission. Such a synchronisation system includes an event detection system adapted to transmit trigger signals and a process execution element adapted to receive trigger signals transmitted by the event detection system. The process execution element can trigger the execution of a process in response to the reception of a trigger signal sent by the event detection system. The video synchronisation system described can be used as a graphics application system or element in addition to other forms of process execution …

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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 March 28, 2002 and granted January 3, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 28, 2022.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 28, 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.
FiledMarch 28, 2002
GrantedJanuary 3, 2012
Term endedMarch 28, 2022
Patent numberCA 2451984 C
Classification (IPC)H04N5/04 +2 more

Timeline

Timeline From CIPO dates

2003200520072009201120132015201720192021Application filedMarch 28, 2002Patent grantedJan 3, 2012Term endedMarch 28, 2022

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