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Expired Canadian patentCanada

Method and apparatus for indicating an expected level of quality in a private push to talk (ptt) network

CA 2622469 C · Owner: Motorola, Inc. · Inventors: Mathis, James E.

CIPO record

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Abstract From the Canadian patent

A method and apparatus for indicating an expected level of quality in a private Push To Talk (PTT) network are disclosed. The method and apparatus receive at least one of an affiliation message and a talkgroup call request for a first subscriber unit of the private PTT network wherein a talkgroup is associated with at least one of the private PTT network another PTT network, and a public network. The method and system determine an expected level of quality for the talkgroup and send the determined expected level of quality to the subscriber unit.

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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 February 27, 2006 and granted May 8, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 27, 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.
FiledFebruary 27, 2006
GrantedMay 8, 2012
Term endedFebruary 27, 2026
Patent numberCA 2622469 C
Classification (IPC)H04W4/10 +2 more

Timeline

Timeline From CIPO dates

2007200920112013201520172019202120232025Application filedFeb 27, 2006Patent grantedMay 8, 2012Term endedFeb 27, 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.