Patent Yard Sign in
Expired Canadian patentCanada

Web browser system

CA 2174376 C · Owner: International Business Machines Corporation · Inventors: Rogers, Richard Michael; Lagarde, Konrad Charles

CIPO record

Overview

Drawings and full text

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

Open the CIPO record

Abstract From the Canadian patent

A World Wide Web browser makes requests to web servers on a network which receive and fulfill requests as an agent of the browser client organizing, distributed sub-agents as distributed integration solution (DIS) servers on an intranet network supporting the web server which also has an access agent servers accessible over the Internet. DIS servers execute selected capsule objects which perform programmable functions upon a received command from a web server control program agent for retrieving from a database gateway, coupled to a plurality of database resources upon a single request made from a Hypertext document, requested information from multiple data bases located at different types …

Read the whole patent

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 April 17, 1996 and granted September 19, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 17, 2016.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 17, 2018.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledApril 17, 1996
GrantedSeptember 19, 2000
Term endedApril 17, 2016
Patent numberCA 2174376 C
Classification (IPC)G06F9/44 +1 more

Timeline

Timeline From CIPO dates

1997199920012003200520072009201120132015Application filedApril 17, 1996Patent grantedSep 19, 2000Term endedApril 17, 2016

Sources & verification

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