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Expired Canadian patentCanada

Communications system providing text-to-speech message conversion features using audio filter parameters and related methods

CA 2499003 C · Owner: Blackberry Limited · Inventors: May, Darrell Reginald; Gagne, Alain R.

CIPO record

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Abstract From the Canadian patent

A communications system may include at least one mobile wireless communications device and a wireless communications network for sending text messages thereto. More particularly the at least one mobile wireless communications device may include a wireless transceiver and a controller cooperating therewith for receiving text messages. The controller may be switchable between a normal message mode and an audio message mode. Also the at least one mobile wireless communications device may further include a user interface device connected to the controller for receiving at least one audio mode filter parameter from a user and an audio output connected to the controller. The controller when in …

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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 March 1, 2005 and granted August 21, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 1, 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.
FiledMarch 1, 2005
GrantedAugust 21, 2012
Term endedMarch 1, 2025
Patent numberCA 2499003 C
Classification (IPC)H04W4/12 +1 more

Timeline

Timeline From CIPO dates

2006200820102012201420162018202020222024Application filedMarch 1, 2005Patent grantedAug 21, 2012Term endedMarch 1, 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.