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Expired Canadian patentCanada

Method for providing multicast and/or broadcast services to user terminals

CA 2464038 C · Owner: Nokia Corporation · Inventors: Kall, Jan; Flykt, Patrik; Muhonen, Ahti

CIPO record

Overview

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

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Abstract From the Canadian patent

The invention relates to a method for providing multicast and/or broadcast services to user terminals (8, 9) via a cellular network (2 5). In order to , increase the efficiency of multicast or broadcast transmissions it is , proposed that each of said user terminals (8 9) willing to receive content , data of at least one multicast and/or broadcast service enters at least once for a predetermined time a state in which it is capable of receiving content data of said multicast and/or broadcast service. The invention equally relates to a corresponding user terminal, to a corresponding cellular network and to a corresponding mobile radio system.

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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 29, 2001 and granted January 3, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 29, 2021.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 29, 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 29, 2001
GrantedJanuary 3, 2012
Term endedOctober 29, 2021
Patent numberCA 2464038 C
Classification (IPC)H04L12/18 +2 more

Timeline

Timeline From CIPO dates

2002200420062008201020122014201620182020Application filedOct 29, 2001Patent grantedJan 3, 2012Term endedOct 29, 2021

Sources & verification

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