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Expired Canadian patentCanada

Time-segmented multimedia game playing and authoring system

CA 2251340 C · Owner: Stelovsky, Jan · Inventors: Stelovsky, Jan

CIPO record

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Abstract From the Canadian patent

An interactive system (Fig. 1) is provided for playing a game educational or , instructional sequence in conjunction with a prerecorded multimedia presentation consisting of at least motion video sound and accompanying text , (Fig. 2). The multimedia presentation is partitioned into time segments (Fig. 2). The game sequence is also partitioned into task units that are synchronized with the time segments. The time address markers for the beginning and ending of each of the time segments initialize, execute, and , close each task unit of a programmed game sequence.

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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 10, 1996 and granted November 25, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 10, 2016.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 10, 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 10, 1996
GrantedNovember 25, 2003
Term endedApril 10, 2016
Patent numberCA 2251340 C
Classification (IPC)A63F13/00 +2 more

Timeline

Timeline From CIPO dates

1997199920012003200520072009201120132015Application filedApril 10, 1996Patent grantedNov 25, 2003Term endedApril 10, 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.