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Expired Canadian patentCanada

Interactive television tracking system

CA 2456984 C · Owner: Tandberg Television, Inc. · Inventors: Barone, Samuel T. Jr.

CIPO record

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

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Abstract From the Canadian patent

An interactive television system tailoring delivery of interactive content includes a request processing engine (40) accepting user interactions with an interactive television (ITV) application. A user profiling engine (42) associates the user interactions with an individual profile or profile group. The profile group defines events that may be triggered upon receipt of certain user interactions. A trigger/event engine (44) monitors in real-time, whether , the user interactions correspond to any of the defined events. If an event is to be triggered, an action engine (46) transmits an ITV command associated with the event to an encoder. The encoder performs a real-time of encoding of …

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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 16, 2002 and granted July 16, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 16, 2022.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 16, 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.
FiledAugust 16, 2002
GrantedJuly 16, 2013
Term endedAugust 16, 2022
Patent numberCA 2456984 C
Classification (IPC)H04N21/25 +1 more

Timeline

Timeline From CIPO dates

2003200520072009201120132015201720192021Application filedAug 16, 2002Patent grantedJuly 16, 2013Term endedAug 16, 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.