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Expired Canadian patentCanada

Mobile telephone network for communication between two communication sets

CA 2546179 C · Owner: Rolland, Alain · Inventors: Rolland, Alain; Zaghdoud, Mohamed-Tahar; Rolland, Thierry

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 invention relates to a local communication network between a first mobile set such as a mobile telephone (1) and a second set (2) such as a fixed-line telephone, by means of a relay antenna (5) and a connection for data transmission (6) connecting the antenna (5) to a fixed radio-frequency station (7). The network is characterised in that the transmission connection is a wireless transmission connection of radio frequency. The invention is of application to communication between a mobile telephone and a fixed-line telephone.

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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 17, 2004 and granted September 24, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 17, 2024.
  • Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
  • 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 17, 2004
GrantedSeptember 24, 2013
Term endedNovember 17, 2024
Patent numberCA 2546179 C
Classification (IPC)H04W16/26 +2 more

Timeline

Timeline From CIPO dates

2005200720092011201320152017201920212023Application filedNov 17, 2004Patent grantedSep 24, 2013Term endedNov 17, 2024

Sources & verification

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