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Expired Canadian patentCanada

Systems and methods for building user media lists

CA 2425458 C · Owner: Ellis, Michael D. · Inventors: Ellis, Michael D.; Walker, Todd A.

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

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Abstract From the Canadian patent

Systems and methods for building media lists are provided in which media may be tagged, listed and subsquently accessed. Meida inciators such as advertisements promotions, programming embedded merchandise and other , suitable indicators may be displayed to promote various media such as television programming, pay-per-view programming video-on-deman programming, Web sites, and any other suitable programming. Users may tag the media associated with media indicators for inclusion in a media list. This media list may be presented to the user so that user can select and view media associated with a media indicator previously stored in the list. This may provide users with ability to store …

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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 October 9, 2001 and granted June 19, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 9, 2021.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 9, 2023.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledOctober 9, 2001
GrantedJune 19, 2012
Term endedOctober 9, 2021
Patent numberCA 2425458 C
Classification (IPC)H04N21/46

Timeline

Timeline From CIPO dates

2002200420062008201020122014201620182020Application filedOct 9, 2001Patent grantedJune 19, 2012Term endedOct 9, 2021

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