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Expired Canadian patentCanada

Methods for efficient early protocol detection

CA 2384162 C · Owner: Abrol, Nischal · Inventors: Lioy, Marcello; Abrol, Nischal

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Abstract From the Canadian patent

A method and system that detects protocol and configuration messages in a PPP packet without having to unframe the entire packet. The method includes a communication device (MT2) that receives a plurality data frames (S306) wherein the communication device is capable of ascertaining the beginning of an information portion (S305) within the received frames. The communications device detects whether the information portion contains configuration information, such as protocol and configuration messages of a predetermined type. In a first embodiment, the detection is achieved by the communication device unescaping (S315) the contents of a plurality of bytes and determining (S325, S330, …

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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 7, 2000 and granted January 4, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 7, 2020.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 7, 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 7, 2000
GrantedJanuary 4, 2011
Term endedSeptember 7, 2020
Patent numberCA 2384162 C
Classification (IPC)H04W28/06 +2 more

Timeline

Timeline From CIPO dates

2001200320052007200920112013201520172019Application filedSep 7, 2000Patent grantedJan 4, 2011Term endedSep 7, 2020

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