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Expired Canadian patentCanada

System and method for forming, maintaining and dynamically reconfigurably routing in an ad-hoc network

CA 2488204 C · Owner: Eka Systems Inc. · Inventors: Chakravarthi, Prakash R.; Winter, Timothy Clark; Anand, Minakshisundaran B.

CIPO record

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Abstract From the Canadian patent

A network comprises a plurality of network nodes. Each network node has a unique node identifier within the context of the network and stores a table of node (100). The table (100) of nodes includes at least one table entry. The table entry includes three fields - a destination node field (101) a next , node field (102) and a cost field (103). The destination field (101) is a unique node identifier corresponding to another node in the network. The next node (102) is a unique node identifier corresponding to the next node in the communication path to the destination node. When a node is added to the network, it detects the presence of adjacent nodes. The new node obtains the table of …

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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 June 4, 2003 and granted January 8, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 4, 2023.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 4, 2025.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJune 4, 2003
GrantedJanuary 8, 2013
Term endedJune 4, 2023
Patent numberCA 2488204 C
Classification (IPC)H04W40/24 +1 more

Timeline

Timeline From CIPO dates

2004200620082010201220142016201820202022Application filedJune 4, 2003Patent grantedJan 8, 2013Term endedJune 4, 2023

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