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Expired Canadian patentCanada

Method and apparatus for communicating information over low bandwidth communications networks

CA 2333033 C · Owner: 3Com Corporation · Inventors: Hawkins, Jeffrey C.; Sipher, Joseph K.; Lincke, Scott D.

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 system having a distributed web site is described. The web site is distributed between a client (100), a server (180) and a web server (140). , The client stores a set of predefined applications (106) that correspond to a part of the web site. The applications are formatted according to a first markup language. From the set of predefined applications the client can , generate queries (122). The server receives the queries and generates new related queries (126). The new queries correspond to a second query protocol. The second query protocol is used by the web server. The web server generates responses (136) to the new queries and sends these responses to the server. The responses …

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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 May 26, 1999 and granted August 2, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 26, 2019.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 26, 2021.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMay 26, 1999
GrantedAugust 2, 2011
Term endedMay 26, 2019
Patent numberCA 2333033 C
Classification (IPC)H04L12/16 +2 more

Timeline

Timeline From CIPO dates

2000200220042006200820102012201420162018Application filedMay 26, 1999Patent grantedAug 2, 2011Term endedMay 26, 2019

Sources & verification

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