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Expired Canadian patentCanada

Event-driven cell scheduler and method for supporting multiple service categories in a communication network

CA 2247367 C · Owner: Motorola, Inc. · Inventors: Kline, Richard B. Ii

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

The event scheduler (100; 200) and method (300) of the present invention solve the problem of mixing multiple service categories on the same physical link or media by utilizing a calendar queue scheduling method (i.e. based on prior actual transmission times of previous packets). The event-driven cell scheduler is, for example, used in an asynchronous transfer mode ATM network and may, for example, be embodied in software hardware and firmware.

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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 13, 1997 and granted October 29, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 13, 2017.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 13, 2019.
  • 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 13, 1997
GrantedOctober 29, 2002
Term endedMarch 13, 2017
Patent numberCA 2247367 C
Classification (IPC)—

Timeline

Timeline From CIPO dates

1998200020022004200620082010201220142016Application filedMarch 13, 1997Patent grantedOct 29, 2002Term endedMarch 13, 2017

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