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Expired Canadian patentCanada

System and method for providing video program information or video program content to a user

CA 2472921 C · Owner: Hamel, Kenneth L. · Inventors: Brenner, Scott; Staller, Joshua D.; Cain, Michael E.

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

In a system for broadcasting video programs to a user including a display a , system and method for providing program information or a copy of at least a portion of a program to the user. In one embodiment a controller receives an , input signal representing a request for summary information concerning a program, the program having a beginning and the input signal generated at a time during the broadcast. The controller provides via the display a summary of the program from the program beginning to the input signal time in response to the input signal. A controller may alternatively monitor a period of time during which the display is tuned to a broadcast of a program the period , …

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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 January 5, 2021. 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
GrantedJanuary 5, 2021
Term endedFebruary 7, 2023
Patent numberCA 2472921 C
Classification (IPC)H04N21/43 +1 more

Timeline

Timeline From CIPO dates

2004200620082010201220142016201820202022Application filedFeb 7, 2003Patent grantedJan 5, 2021Term endedFeb 7, 2023

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