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Canadian application, no grantCanada

Computer security system

CA 2467186 A1 · Owner: British Telecommunications Public Limited Company · Inventors: Shipman, Robert Andrew

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 computer security system for use in a network environment comprising at least a plurality of user computers arranged to communicate over a network the system comprising a warning message exchange system operable to allow the communication from the user computers of warning messages relating to suspect data identified as a possible security threat; a message counting system operable to maintain a count for every particular piece or set of suspect data based on the number of warning messages communicated relating thereto; and network security means operable to act against any particular piece or set of suspect data for which the count maintained therefor exceeds at least one …

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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, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 6, 2022.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 6, 2024.
  • 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, 2002
GrantedNo grant recorded
Term endedNovember 6, 2022
Patent numberCA 2467186 A1
Classification (IPC)H04L9/00 +2 more

Timeline

Timeline From CIPO dates

2003200520072009201120132015201720192021Application filedNov 6, 2002Term endedNov 6, 2022

Sources & verification

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