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Canadian application, no grantCanada

Method and apparatus for establishing dedicated local area network (lan) connections in an optical transmission network

CA 2321387 A1 · Owner: Lemieux, Bernard · Inventors: Wight, Mark S.; Corkum, Trevor D.; Lemieux, Bernard

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 present invention provides a method and apparatus for establishing dedicated local area network (LAN) connectivity between network elements (NEs) in an optical transmission network without using any of the payload transport capacity available. In order to provision dedicated LAN connections between NEs, the invention reallocates existing overhead functionality to provide dedicated bandwidth for LAN communications between NEs. At each NE a respective LAN, interface unit provides access to this dedicated bandwidth and allows LAN devices such as personal computers (PCs) servers, and monitoring equipment to communicate across NEs of an optical transmission network without consuming any …

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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 28, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended September 28, 2020.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 28, 2022.
  • 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 28, 2000
GrantedNo grant recorded
Term endedSeptember 28, 2020
Patent numberCA 2321387 A1
Classification (IPC)H04L12/28 +2 more

Timeline

Timeline From CIPO dates

2001200320052007200920112013201520172019Application filedSep 28, 2000Term endedSep 28, 2020

Sources & verification

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