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Expired Canadian patentCanada

Session oriented connectionless data transfer for a computer network

CA 2104076 C · Owner: Morris, Gregory Lynn · Inventors: Mccassey, Everett Arthur; Li, Chun-Tang Milton; Morris, Gregory Lynn

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

A session-oriented local area network (LAN) application and an ISO 8802-2 protocol driver code will cooperate in a new form of connectionless, session-oriented communication called Sideband. At each session start-up time the LAN, Application will communicate with the enhanced ISO 8802-2 based protocol driver on the local system and the LAN Application and the 8802-2 based protocol driver on the remote system to determine if they all support the Sideband. If Sideband is fully supported by both systems Sideband, will be activated for the session. To communicate on a session which has Sideband active, the LAN Application requests that data is to be sent using the Sideband. A check is performed …

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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 August 13, 1993 and granted May 18, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 13, 2013.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 13, 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.
FiledAugust 13, 1993
GrantedMay 18, 1999
Term endedAugust 13, 2013
Patent numberCA 2104076 C
Classification (IPC)G06F13/42 +2 more

Timeline

Timeline From CIPO dates

1994199619982000200220042006200820102012Application filedAug 13, 1993Patent grantedMay 18, 1999Term endedAug 13, 2013

Sources & verification

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