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Expired Canadian patentCanada

Conversational telephone call distributor

CA 1112343 A · Owner: Buchberger, Gregory D. · Inventors: Buchberger, Gregory D.; Theis, Peter F.

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

A call distributor for use with a plurality o. telephone lines is described which includes an automatic telephone answering machine which interrogates the calling party with a prerecorded message and transmits the calling party's response to this message to a recorder. The recorded response is then replayed to an operator who intercepts the call in order to converse with the calling party after auditing the recorded response. The call distributor of this invention thereby combines the flexibility of an operator assisted call distributor with the efficiency of automatic interrogation of the calling 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

  • Granted November 10, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 10, 1998.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledDecember 19, 1978
GrantedNovember 10, 1981
Term endedNovember 10, 1998
Patent numberCA 1112343 A
Classification (IPC)H04M3/50 +1 more

Timeline

Timeline From CIPO dates

1979198119831985198719891991199319951997Application filedDec 19, 1978Patent grantedNov 10, 1981Term endedNov 10, 1998

Sources & verification

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