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Expired Canadian patentCanada

Call admission control method and cell flow monitoring method in the same method

CA 2010557 C · Owner: Katsube, Yasuhiro · Inventors: Katsube, Yasuhiro

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

In a network in which all information from terminals having various traffic characteristics is transmitted/switched by a fixed length block including a virtual channel id, a terminal requesting communication declares destination address information and traffic characteristics of the requested communication upon set-up to a network. The exchange in the network expresses traffic characteristics of an individual terminal and an offered load (estimated cell flow) in the network. The traffic characteristics of each terminal are expressed as a maximum cell flow generated from the terminal in time units .DELTA. t(i) (i = 1, 2, ... n) having _ predetermined lengths. The predicted offered load 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 February 21, 1990 and granted September 7, 1993. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 21, 2010.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 21, 2012.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledFebruary 21, 1990
GrantedSeptember 7, 1993
Term endedFebruary 21, 2010
Patent numberCA 2010557 C
Classification (IPC)H04Q1/20 +1 more

Timeline

Timeline From CIPO dates

1991199319951997199920012003200520072009Application filedFeb 21, 1990Patent grantedSep 7, 1993Term endedFeb 21, 2010

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