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Expired Canadian patentCanada

Method and system for capturing and recording call information

CA 2271285 C · Owner: Bellsouth Intellectual Property Group, Inc. · Inventors: Desai, Nailesh B.; Schmidt, Richard C.

CIPO record

Overview

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

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Abstract From the Canadian patent

A method and system of utilizing advanced intelligent network services for capturing and recording dial-around call information is provided. Dial-around calls are calls directed to a telecommunication services provider other than the services provider designated by the owner or operator of the originating telecommunications device, such as a pay telephone. When a public switched telephone network effects a "dial-around" of a prescribed telecommunication services provider at a pay telephone, accounting records generated by the local telecommunication services provider do not identify that the call originated at a pay telephone. Thus, important billing and asset management data are …

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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 October 31, 1997 and granted August 15, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 31, 2017.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 31, 2019.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledOctober 31, 1997
GrantedAugust 15, 2000
Term endedOctober 31, 2017
Patent numberCA 2271285 C
Classification (IPC)H04Q3/00 +2 more

Timeline

Timeline From CIPO dates

1998200020022004200620082010201220142016Application filedOct 31, 1997Patent grantedAug 15, 2000Term endedOct 31, 2017

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