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Expired Canadian patentCanada

Merging multi-source information in a television system

CA 2842380 C · Owner: Starsight Telecast Incorporated · Inventors: Klosterman, Brian Lee

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

A method for causing media guidance information to be displayed. The method involves receiving a plurality of media assets. First ones of the plurality of media assets are transmitted using a first transmission scheme by a first source and second ones of the plurality of media assets are transmitted using a second transmission scheme different from the first transmission scheme by a second source. The method also involves storing the media guidance information. The media guidance information is associated with the first and second ones of the plurality of media assets. The stored media guidance information comprises information indicative of the transmission scheme used to transmit each 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 April 4, 1996 and granted July 7, 2015. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 4, 2016.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 4, 2018.
  • 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 4, 1996
GrantedJuly 7, 2015
Term endedApril 4, 2016
Patent numberCA 2842380 C
Classification (IPC)H04N21/46 +1 more

Timeline

Timeline From CIPO dates

1997199920012003200520072009201120132015Application filedApril 4, 1996Patent grantedJuly 7, 2015Term endedApril 4, 2016

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