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Expired Canadian patentCanada

Technique for administering personal telephone numbers

CA 2103232 C · Owner: Kapsales, Peter · Inventors: Phillips, Wayne D.; Saleh, Patricia Denton; Gellman, Leon H.

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 drawbacks to administering a sequence of locations to which calls placed to a subscriber's personal telephone number may be routed for personal communication service are overcome by a) storing pre-defined mnemonic audible tags for association with telephone numbers prior to any interactions with the subscriber b) offering the subscriber a choice of the pre-defined mnemonic audible tags by speaking them to him c) receiving an indication of the mnemonic audibletag selected by the subscriber d) receiving signals indicating a telephone number supplied by the subscriber; and e) storing the received telephone number information in association with the selected mnemonic audible tag. The …

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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 16, 1993 and granted March 18, 1997. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 16, 2013.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 16, 2015.
  • 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 16, 1993
GrantedMarch 18, 1997
Term endedNovember 16, 2013
Patent numberCA 2103232 C
Classification (IPC)H04M3/54 +2 more

Timeline

Timeline From CIPO dates

1994199619982000200220042006200820102012Application filedNov 16, 1993Patent grantedMarch 18, 1997Term endedNov 16, 2013

Sources & verification

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