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Expired Canadian patentCanada

Systems and methods for recording and playing back programs having desirable recording attributes

CA 3000486 C · Owner: Rovi Guides, Inc. · Inventors: Ellis, Michael D.; Spiegel, Reed S.

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

Systems and methods for recording multiple copies of a program are provided. The method may include receiving a user instruction to record a program. A determination may be made to record multiple copies of the program. In response to the determination multiple copies of the program may be recorded. A user instruction to display the recorded program may be received. A copy of the program may be played back. The user may switch to another copy of the recorded program if the original copy lacks desirable recording attributes or the interactive television application may automatically switch to another copy of the program.

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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 September 29, 2006 and granted July 2, 2019. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 29, 2026.
  • Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledSeptember 29, 2006
GrantedJuly 2, 2019
Term endedSeptember 29, 2026
Patent numberCA 3000486 C
Classification (IPC)H04N21/44 +2 more

Timeline

Timeline From CIPO dates

2007200920112013201520172019202120232025Application filedSep 29, 2006Patent grantedJuly 2, 2019Term endedSep 29, 2026

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