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Canadian application, no grantCanada

Method and apparatus for detecting disabled physical devices and deleting undeliverable cells

CA 2281691 A1 · Owner: Integrated Telecom Technology, Inc. · Inventors: Holden, Brian; Alleyne, Brian; Braun, Darren

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 system and method for flushing cells in an ATM network sets an interval timer during which it would be expected that an active physical output would indicate it could accept a cell. When an interval elapses a physical output , that has not indicated it is ready to accept a cell is marked as disabled and may remain so until the output is reset. Cells in an output queue to a disabled cell are flushed during periods when no higher priority cells are available to be sent.

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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 November 7, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 7, 2017.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 7, 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.
FiledNovember 7, 1997
GrantedNo grant recorded
Term endedNovember 7, 2017
Patent numberCA 2281691 A1
Classification (IPC)H04L12/56 +1 more

Timeline

Timeline From CIPO dates

1998200020022004200620082010201220142016Application filedNov 7, 1997Term endedNov 7, 2017

Sources & verification

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