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Expired Canadian patentCanada

Method and apparatus for traffic control

CA 2292411 C · Owner: Akiyama, Daisuke · Inventors: Kawakami, Hiroshi; Tamura, Motoshi; Nakano, Masatomo

CIPO record

Overview

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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 traffic control unit and a traffic control method are provided. They carry out , in a first shared resource (like a radio base station in a mobile radio network) of a network including besides the first shared resource a, second shared resource (like a transmission path between a radio base station and a local switch) and a local switch which are shared by a plurality of users traffic control, of data to be transmitted to the local switch through the second shared resource. This makes it possible to positively achieve the traffic control and to prevent the, shared resources in the network from being wasted. Appropriate control is implemented by carrying out for, data taking place in a …

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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 5, 1999 and granted December 9, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 5, 2019.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 5, 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.
FiledMarch 5, 1999
GrantedDecember 9, 2003
Term endedMarch 5, 2019
Patent numberCA 2292411 C
Classification (IPC)H04L12/93 +2 more

Timeline

Timeline From CIPO dates

2000200220042006200820102012201420162018Application filedMarch 5, 1999Patent grantedDec 9, 2003Term endedMarch 5, 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.