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Expired Canadian patentCanada

Remote retrieval system for pagers

CA 2209097 C · Owner: At&T Corp. · Inventors: Rutledge, Christopher L.

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 for retrieving pages from a remote location. In one embodiment, pager users can access their pagers from a remote location via a, public switched telephone network to retrieve messages (i.e. numeric, alphanumeric and voice messages) and/or perform any other pager operation by engaging in an interactive wireless dialogue with the pager via a public switched telephone network and the paging system, wherein the pager uses digital voice encoding techniques to provide verbal feedback to the remote user. The remote can dial the number of the individual pager from a remote location and enter a preprogrammed command sequence to initiate wireless dialogue with the pager. Once the …

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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 June 26, 1997 and granted July 16, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 26, 2017.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 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.
FiledJune 26, 1997
GrantedJuly 16, 2002
Term endedJune 26, 2017
Patent numberCA 2209097 C
Classification (IPC)H04M3/42 +1 more

Timeline

Timeline From CIPO dates

1998200020022004200620082010201220142016Application filedJune 26, 1997Patent grantedJuly 16, 2002Term endedJune 26, 2017

Sources & verification

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