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Expired Canadian patentCanada

Back up of network devices

CA 2544033 C · Owner: Avaya Canada Corp. · Inventors: Bell, Jennifer; Gagnon, Natalie Ann; Poustchi, Behrouz

CIPO record

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Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

A network device selects at least one other network device as its backup and communicates information for use by the backup network device(s) in assuming the role of the network device upon its unavailability. The network device also receives information from at least one network device that has selected it as its backup device for use in assuming the role of the selecting device(s) upon unavailability of the selecting device(s). Each network device may act as a backup for the same number of devices as it has backups. Selection of backup devices may be based on device reliability. In one embodiment, each network device has a primary and secondary backup. The primary backup assumes …

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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 November 22, 2004 and granted July 23, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 22, 2024.
  • 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.
FiledNovember 22, 2004
GrantedJuly 23, 2013
Term endedNovember 22, 2024
Patent numberCA 2544033 C
Classification (IPC)H04L1/22 +2 more

Timeline

Timeline From CIPO dates

2005200720092011201320152017201920212023Application filedNov 22, 2004Patent grantedJuly 23, 2013Term endedNov 22, 2024

Sources & verification

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