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CA 2270892 A1 · Owner: At&T Corp. · Inventors: Hall, Robert J.

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

A method of updating a knowledge base containing information about a subject matter, the knowledge base being used to automatically respond to messages containing questions or comments relating to the subject matter the method , including the steps of logging the message in a log if the knowledge base does not address the message; providing the logged message to a subject matter expert; and permitting the subject matter expert but not other users of the , knowledge base to update the knowledge base in response to the logged message. The method further includes the steps of sending the logged message to one or more persons on a list of people with knowledge about the subject matter; …

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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 November 6, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 6, 2017.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 6, 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.
FiledNovember 6, 1997
GrantedNo grant recorded
Term endedNovember 6, 2017
Patent numberCA 2270892 A1
Classification (IPC)G06F17/30 +1 more

Timeline

Timeline From CIPO dates

1998200020022004200620082010201220142016Application filedNov 6, 1997Term endedNov 6, 2017

Sources & verification

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