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Canadian application, no grantCanada

Call queuing in a telecommunications network

CA 2338290 A1 · Owner: British Telecommunications Public Limited Company · Inventors: Williams, Philip Mark

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

In a call queuing arrangement for a network defining a call centre a service , control function (10) maintains a record of all calls held in a queue so that the estimated time of answer of each such call by a server at an answer centre (16) can be announced to the calling customer. Each incoming call results in a call record process (14) being created for that call and if the period for , which a customer may have to wait exceeds a predetermined threshold the , customer is given an opportunity to request to be re-called by the network at a time close to an expected server free time. The customer's place is usually maintained in the queue such that each call joining the queue is …

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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 15, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 15, 2019.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 15, 2021.
  • 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 15, 1999
GrantedNo grant recorded
Term endedJune 15, 2019
Patent numberCA 2338290 A1
Classification (IPC)H04M3/48 +2 more

Timeline

Timeline From CIPO dates

2000200220042006200820102012201420162018Application filedJune 15, 1999Term endedJune 15, 2019

Sources & verification

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