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Expired Canadian patentCanada

Apparatus and method for isdn provision verification

CA 2196346 C · Owner: Lucent Technologies, Inc. · Inventors: Vallone, Lee Alan; Baker, Albert D.; Eng, Ellen

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

Provisioning a Central Office (CO) Basic Rate Interface (BRI) access is a complex procedure which involves hundreds and potentially thousands, of , parameters that must be asserted to configure the CO for a particular user's service profile. In, such a complex procedure, errors in the provisioning may be introduced which are, difficult and costly to detect and correct. To solve this problem a , provisioning tool, which exercises BRI lines i.e. digital subscriber lines (DSLs) from a CO to a premises switch is defined which validates that transport related restrictions and, permissions are properly administered at the CO. This is achieved by the system, calling itself over such lines 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

  • Filed January 30, 1997 and granted September 5, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 30, 2017.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 30, 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.
FiledJanuary 30, 1997
GrantedSeptember 5, 2000
Term endedJanuary 30, 2017
Patent numberCA 2196346 C
Classification (IPC)H04L12/52 +1 more

Timeline

Timeline From CIPO dates

1998200020022004200620082010201220142016Application filedJan 30, 1997Patent grantedSep 5, 2000Term endedJan 30, 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.