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Expired Canadian patentCanada

Sonet tributary ambiguity resolution for elastic store control

CA 2096717 C · Owner: Alcatel Networks Systems, Inc. · Inventors: Baydar, Ertugrul; Weeber, William B.

CIPO record

Overview

Drawings and full text

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

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Abstract From the Canadian patent

Read and write addresses on the local and line sides of a SONET elastic store are compared at least twice in order to determine any ambiguity in the comparison and if so determined, forgoing any pointer adjustments that would otherwise have been made.

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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 May 20, 1993 and granted February 16, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 20, 2013.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 20, 2015.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMay 20, 1993
GrantedFebruary 16, 1999
Term endedMay 20, 2013
Patent numberCA 2096717 C
Classification (IPC)H04J14/08 +2 more

Timeline

Timeline From CIPO dates

1994199619982000200220042006200820102012Application filedMay 20, 1993Patent grantedFeb 16, 1999Term endedMay 20, 2013

Sources & verification

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