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Expired Canadian patentCanada

A method and apparatus for multimedia communication

CA 2582329 C · Owner: Telefonaktiebolaget Lm Ericsson (Publ) · Inventors: Stille, Mats

CIPO record

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Abstract From the Canadian patent

A method and apparatus for enabling communication of IP multimedia content to a called user during a circuit-switched call between a calling terminal (A) having called a primary communication unit (B1) when the call has been , forwarded to a secondary communication unit (B2). The calling terminal receives a connected number during a call set-up procedure e.g. by , subscribing to a called line presentation (COLP) service. The calling terminal stores the received connected number and determines multimedia capabilities of the secondary communication unit based on the connected number. Available multimedia options can then be determined based on the multimedia capabilities of the …

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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 January 26, 2005 and granted December 10, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 26, 2025.
  • 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.
FiledJanuary 26, 2005
GrantedDecember 10, 2013
Term endedJanuary 26, 2025
Patent numberCA 2582329 C
Classification (IPC)H04M3/54

Timeline

Timeline From CIPO dates

2006200820102012201420162018202020222024Application filedJan 26, 2005Patent grantedDec 10, 2013Term endedJan 26, 2025

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