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Expired Canadian patentCanada

Technique for obtaining information and services over a communication network

CA 2233496 C · Owner: Anupam, Vinod · Inventors: Gehani, Narain H.; Anupam, Vinod

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

In a communications arrangement, a computer user accesses a server system to seek customer service over the World Wide Web (WWW). The server system assigns a customer service agent (CSA) to communicate with the user to realize the customer service. In a customer service session the user and CSA may, collaboratively browse hypertext markup language (HTML) documents at different uniform resource locators (URLs) to obtain relevant information. However in, accordance with the invention, the version of each document presented to the user may be different from that presented to the CSA. In particular the CSA version contains, proprietary information which is excluded from the user version.

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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 March 30, 1998 and granted December 25, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 30, 2018.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 30, 2020.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMarch 30, 1998
GrantedDecember 25, 2001
Term endedMarch 30, 2018
Patent numberCA 2233496 C
Classification (IPC)G06F17/30 +1 more

Timeline

Timeline From CIPO dates

1999200120032005200720092011201320152017Application filedMarch 30, 1998Patent grantedDec 25, 2001Term endedMarch 30, 2018

Sources & verification

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