Patent Yard Sign in
Expired Canadian patentCanada

A distributed system to intelligently establish sessions between anonymous users over various networks

CA 2371078 C · Owner: Gudjonsson, Gudjon M. · Inventors: Gudjonsson, Gudjon M.; Emilsson, Kjartan Pierre

CIPO record

Overview

Drawings and full text

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

Open the CIPO record

Abstract From the Canadian patent

A network provides users with a simple and secure way of establishing communication sessions with other users or services running either over IP , networks or other networks e.g. PSTN. A plurality of different clusters of servers is provided, and each of the clusters may be linked together. Users are registered within some specific cluster and given a unique system/network ID. Messages are not sent directly between users but instead through at least , one intermediate routing service (RS) provided on a server of one of the users. Thus a user may hide or mask his/her personal information from other users even when communicating with them. A user may establish a communication session …

Read the whole patent

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 10, 2000 and granted April 16, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 10, 2020.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 10, 2022.
  • 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 10, 2000
GrantedApril 16, 2013
Term endedMay 10, 2020
Patent numberCA 2371078 C
Classification (IPC)H04L51/04 +2 more

Timeline

Timeline From CIPO dates

2001200320052007200920112013201520172019Application filedMay 10, 2000Patent grantedApril 16, 2013Term endedMay 10, 2020

Sources & verification

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