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Expired Canadian patentCanada

Method and apparatus to enable enhanced services of an intelligent telephone network in a wireless environment

CA 2272020 C · Owner: Iskandar, Ossama L. · Inventors: Iskandar, Ossama L.; Hume, Ronald A.

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Abstract From the Canadian patent

The subject invention enables enhanced service nodes to interface to wireless intelligent network enabled switch networks in a way that minimizes the cost of network resources while also allowing the wireless intelligent network enabled enhanced services applications to be distributed across multiple geographically dispersed enhanced services nodes. Each of these nodes can have one or more enhanced services applications which can be either or both wireless and wireline enabled. The invention provides a method and apparatus for creating and managing signals in an advanced intelligent telephone network such as Signaling System 7, resulting from a wireless subscriber in order for 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 May 17, 1999 and granted April 29, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 17, 2019.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 17, 2021.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMay 17, 1999
GrantedApril 29, 2003
Term endedMay 17, 2019
Patent numberCA 2272020 C
Classification (IPC)H04W76/10 +1 more

Timeline

Timeline From CIPO dates

2000200220042006200820102012201420162018Application filedMay 17, 1999Patent grantedApril 29, 2003Term endedMay 17, 2019

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