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Expired Canadian patentCanada

Monitoring system

CA 2430529 C · Owner: Care Monitoring 2000 Limited · Inventors: Jackson, Christian Moray; Longman, Peter George

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

The invention concerns a monitoring system for monitoring incoming telephone calls routed through a call transference system the system comprising an , electronic processor and an associated database the system being adapted to , detect the originating number of the caller and the called number to which the incoming call was made before being transferred to automatically generate a , return call to any incoming call the originating and called numbers of which have been identified without answering the incoming call and to store the , time and date of an incoming call the number of which has been identified and data representing the number to which the incoming call was made.

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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 November 30, 2001 and granted February 15, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 30, 2021.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 30, 2023.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledNovember 30, 2001
GrantedFebruary 15, 2011
Term endedNovember 30, 2021
Patent numberCA 2430529 C
Classification (IPC)H04M3/43 +2 more

Timeline

Timeline From CIPO dates

2002200420062008201020122014201620182020Application filedNov 30, 2001Patent grantedFeb 15, 2011Term endedNov 30, 2021

Sources & verification

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