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Expired Canadian patentCanada

Coaxial microwave plasma torch

CA 2561657 C · Owner: Fujioka, Kazunari · Inventors: Fujioka, Kazunari; Ramasamy, Raju; Urayama, Takuya

CIPO record

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Abstract From the Canadian patent

A coaxial microwave plasma torch, comprising an outside conductor (1) , formed in a cylindrical shape a cylindrical electric discharge tube (3) fixedly inserted , into an axial hole (2) formed in the outside conductor on one end face (4) side, and a , coaxial cable (6) having one end fitted to the other end face of the outside conductor. , An antenna (9) electrically connected to an inside conductor (8) is fitted to the one end , of the coaxial cable and extended into the electric discharge tube through a through-hole , (11) axially passed through between the other end face (5) of the outside conductor and , the bottom face of the axial hole. The outside conductor (7) of the coaxial …

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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 March 25, 2005 and granted July 29, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 25, 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.
FiledMarch 25, 2005
GrantedJuly 29, 2014
Term endedMarch 25, 2025
Patent numberCA 2561657 C
Classification (IPC)H05H1/30

Timeline

Timeline From CIPO dates

2006200820102012201420162018202020222024Application filedMarch 25, 2005Patent grantedJuly 29, 2014Term endedMarch 25, 2025

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