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Expired Canadian patentCanada

Automated booking of telecommunications calls

CA 2024311 C · Owner: American Telephone And Telegraph Company · Inventors: Dorst, Gary Lewis; Pope, Francis Joseph, Iii

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

Abstract, An automatic call booking arrangement is disclosed for establishing a booked call between a back party and a forward party. A booked call is reserved by storing call booking ticket data regarding the call in a call booking database. A call booking scanning (CBS) process system continually scans call booking ticket data to determine whether it is time to establish a booked call. At the time a booked call is to be established, the CBS process sends the call booking ticket data to an automatic call booking (ACB) process. In response to receipt of the call booking ticket data the ACB process uses the data to establish automatically a call between the backparty and the forward party.

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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 August 30, 1990 and granted February 15, 1994. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 30, 2010.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 30, 2012.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledAugust 30, 1990
GrantedFebruary 15, 1994
Term endedAugust 30, 2010
Patent numberCA 2024311 C
Classification (IPC)H04M3/42 +2 more

Timeline

Timeline From CIPO dates

1991199319951997199920012003200520072009Application filedAug 30, 1990Patent grantedFeb 15, 1994Term endedAug 30, 2010

Sources & verification

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