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Expired Canadian patentCanada

Data network, method and feedback node for assigning and providing path characterisation metrics

CA 2559924 C · Owner: Soppera, Andrea · Inventors: Briscoe, Bob; Cazalet, Sebastien; Soppera, Andrea

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Abstract From the Canadian patent

The invention relates to data networks and to nodes making up parts of data , networks arranged to derive information relating to the characterisation of paths taken by data travelling between nodes in the networks. Path characterisation information is fed back from a receiver of data to a provider of data, and informs nodes subsequently forwarding data of characteristics of the downstream path. Also described are routing and related controlling nodes and methods for using such path characterisation information to make informed routing and other decisions when forwarding data in a data network.

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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 30, 2005 and granted December 17, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 30, 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 30, 2005
GrantedDecember 17, 2013
Term endedMarch 30, 2025
Patent numberCA 2559924 C
Classification (IPC)H04L45/02 +2 more

Timeline

Timeline From CIPO dates

2006200820102012201420162018202020222024Application filedMarch 30, 2005Patent grantedDec 17, 2013Term endedMarch 30, 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.