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Expired Canadian patentCanada

Protective sheath against radiation, in particular derived from electric field generated by electric cables

CA 2572944 C · Owner: Aumoitte, Christian · Inventors: Aumoitte, Christian

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 concerns a protective sheath against radiation in particular derived from electric field generated by electric cables (1 2, 3) extending inside the sheath. The invention is characterized in that it comprises an electrically insulating plastic outer layer (4) covering an electrically conductive material layer (5) the sheath end including removable connecting means for connecting the electrically conductive material layer (5) to an electrical conductor (7) designed to be connected to the ground said sheath enclosing or designed to enclose at least one neutral cable (1) one ground cable (2) and one phase cable (3) connected to an electric power distribution system.

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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 8, 2005 and granted April 15, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 8, 2025.
  • 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.
FiledJuly 8, 2005
GrantedApril 15, 2014
Term endedJuly 8, 2025
Patent numberCA 2572944 C
Classification (IPC)H02G3/04 +1 more

Timeline

Timeline From CIPO dates

2006200820102012201420162018202020222024Application filedJuly 8, 2005Patent grantedApril 15, 2014Term endedJuly 8, 2025

Sources & verification

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