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Expired Canadian patentCanada

Telecommunications system and method of telecommunication

CA 2180925 C · Owner: Faruque, Seleh · Inventors: Faruque, Seleh; Quelch, Peter J.; Qi, Yihong

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

Telecommunications system in which an outside antenna is positioned to direct radio signals in a divergent beam towards a predetermined wall surface area of a building. The outside antenna is sufficiently close to the building to require constancy of the radio signals to noise ratio of radio signals transmitted by the outside antenna. The signals transmitted at the building are received by patch antennas located on the wall surface area (e.g. in practice upon windows) for connection of the outside antenna to individual terminal outlets in the building. These terminal outlets are preferably connected by cable to the patch antennas, but the terminal outlets may be radio receivers.

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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 July 10, 1996 and granted August 26, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 10, 2016.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 10, 2018.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJuly 10, 1996
GrantedAugust 26, 2003
Term endedJuly 10, 2016
Patent numberCA 2180925 C
Classification (IPC)H04B7/24

Timeline

Timeline From CIPO dates

1997199920012003200520072009201120132015Application filedJuly 10, 1996Patent grantedAug 26, 2003Term endedJuly 10, 2016

Sources & verification

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