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Expired Canadian patentCanada

Universal directory service

CA 2201067 C · Owner: Stuntebeck, Peter H. · Inventors: Stuntebeck, Peter H.; Bulfer, Andrew Frederick

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 universal directory service (UDS) provides the communication addresses of individuals associated with numerous different institutions and can be, accessed via more than one communication channel. A UDS server communicates with one or more data sources to provide directory information to a user. The UDS also provides supplemental information such as company name logo, and specialty. The UDS can be accessed via numerous communication channels including the internet, on-line service providers, wireless devices modem, dedicated access, channels, voice access via an attendant and voice access via a speech recognition and synthesis system.

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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 26, 1997 and granted May 23, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 26, 2017.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 26, 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.
FiledMarch 26, 1997
GrantedMay 23, 2000
Term endedMarch 26, 2017
Patent numberCA 2201067 C
Classification (IPC)H04M3/42 +2 more

Timeline

Timeline From CIPO dates

1998200020022004200620082010201220142016Application filedMarch 26, 1997Patent grantedMay 23, 2000Term endedMarch 26, 2017

Sources & verification

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