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Expired Canadian patentCanada

Method and apparatus for exchange of information in a communication network

CA 2397588 C · Owner: The Phone Pages Of Sweden Ab · Inventors: Minborg, Per-Ake; Axelsson, Stefan

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 technique for connecting a dialed B-party number to a data object is described. The connecting of a B-party number to a specific data object hereafter referred to as phonepage, will allow an A-party direct access to information that a B-party wishes to display to a calling party. The phonepage resides in a memory in a telecommunications network or in a memory in a data-, communications network connected thereto. The phonepage may have a similar appearance to an Internet web page, but may also take other appearances. The displaying of the phonepage may be made dependent upon the capabilities of the A-party user equipment.

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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 September 3, 2000 and granted December 11, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 3, 2020.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 3, 2022.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledSeptember 3, 2000
GrantedDecember 11, 2012
Term endedSeptember 3, 2020
Patent numberCA 2397588 C
Classification (IPC)H04L61/45 +2 more

Timeline

Timeline From CIPO dates

2001200320052007200920112013201520172019Application filedSep 3, 2000Patent grantedDec 11, 2012Term endedSep 3, 2020

Sources & verification

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