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Expired Canadian patentCanada

Multi-media integrated message arrangement

CA 2109899 C · Owner: American Telephone And Telegraph Company · Inventors: Klein, Robert Michael

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

Voice, facsimile, and electronic mail messaging is integrated in a system (FIG. 1) that converts e-mail messages into voice-and-fax messages. An e-mail message (400) is parsed into voiceable prose, segments (403) and non-voiceable,non-prose segments (404). Prose segments are converted into voice message segments (503) via text-to-speech facilities. Each non-prose segment is converted into a fax segment (504). Voice pointers (505) to fax segments are inserted into the voice message, in places corresponding to the non-prose segments in the e-mail message. The voice file (500) and fax file (510) are then stored for subsequent delivery of the message as an integrated voice-and-fax message. …

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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 24, 1993 and granted September 16, 1997. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 24, 2013.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 24, 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 24, 1993
GrantedSeptember 16, 1997
Term endedNovember 24, 2013
Patent numberCA 2109899 C
Classification (IPC)H04M11/06 +2 more

Timeline

Timeline From CIPO dates

1994199619982000200220042006200820102012Application filedNov 24, 1993Patent grantedSep 16, 1997Term endedNov 24, 2013

Sources & verification

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