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Expired Canadian patentCanada

Method and system for connection verification

CA 2540366 C · Owner: Burns, David J. · Inventors: Branco, Manuel Lopes; Gorenc, Frank Tony; Burns, David J.

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

The present invention provides a method and system for connection verification. An embodiment includes a DSL based system with a tester , resident at a central office respective to a DSLAM. When a problem is encountered by a subscriber, the tester can be readily connected to the DSLAM to allow performance of tests on the connection between the tester the DSLAM , and the Internet. If such tests are successful then service provider can , eliminate that portion of the link as the source of the connectivity problem. If unsuccessful, the service provider can repair that portion of the connection, and thereby potentially obviate the need to send a technician to the subscriber premises.

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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 September 24, 2004 and granted December 11, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 24, 2024.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 24, 2026.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledSeptember 24, 2004
GrantedDecember 11, 2012
Term endedSeptember 24, 2024
Patent numberCA 2540366 C
Classification (IPC)H04L43/08 +2 more

Timeline

Timeline From CIPO dates

2005200720092011201320152017201920212023Application filedSep 24, 2004Patent grantedDec 11, 2012Term endedSep 24, 2024

Sources & verification

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