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Expired Canadian patentCanada

A caller name and identification communication system with caller screening option

CA 2175495 C · Owner: Imaginex Fund I, Llc · Inventors: Serbetcioglu, Bekir; Ozulkulu, Esref; Duman, Osman

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

The present invention provides a caller name delivery service telecommunication system (322) having caller screening and other options. The system (322) includes intercepting a call from a calling subscriber. (336) to a desired called subscriber as a first option, prompting the caller to either speak his or her name or speak or punch a pin number as a second option reviewing whether the intercepted, call is on either list playing a called subscriber announcement requesting voice identification of the calling subscriber recording the voice, identification on a recording medium transmitting to the called subscriber the recorded voice message recording the telephone number, of the calling …

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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 October 31, 1994 and granted December 21, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 31, 2014.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 31, 2016.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledOctober 31, 1994
GrantedDecember 21, 1999
Term endedOctober 31, 2014
Patent numberCA 2175495 C
Classification (IPC)H04M3/50 +2 more

Timeline

Timeline From CIPO dates

1995199719992001200320052007200920112013Application filedOct 31, 1994Patent grantedDec 21, 1999Term endedOct 31, 2014

Sources & verification

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