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Expired Canadian patentCanada

Congestion control method for packet switching apparatus

CA 1328916 C · Owner: Kabushiki Kaisha Toshiba · Inventors: Maeno, Junichi

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

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Abstract From the Canadian patent

One technique of a congestion control method for packet switching apparatuses, in which a plurality of sorts of priority data indicative of different demands such as a first priority data (P) indicative of immediateness priority and a second priority data (D) indicative of necessity priority, are previously combinedly attached to each packet (PK). In congestion of a packet queue (1012), such control is carried out that such a packet as having the high first immediateness priority is rearranged as located in the front part of the queue while such a packet as having the high first immediateness priority but having the low second necessity priority is first discarded according to the first and …

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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

  • Granted April 26, 1994. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 26, 2011.
  • 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 27, 1989
GrantedApril 26, 1994
Term endedApril 26, 2011
Patent numberCA 1328916 C
Classification (IPC)—

Timeline

Timeline From CIPO dates

19901993199619992002200520082011Application filedFeb 27, 1989Patent grantedApril 26, 1994Term endedApril 26, 2011

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