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Expired Canadian patentCanada

Anesthesia conduction catheter for delivery of electrical stimulus

CA 2500157 C · Owner: Brushey, Stephen · Inventors: Brushey, Stephen

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

A catheter is comprised of a flexible cylindrical tube defining a proximal portion and a distal portion terminating in a distal tip. The tube has a plurality of openings formed therethrough to form a diffusion area. The catheter includes a conductive end cap enclosing a distal tip. A flexible conductive member is attached to the conductive end cap and extends to the proximal portion where it is attached to the inside diameter of the flexible tube. The member is movable within the tube. Because of the rules governing abstracts this abstract should not be relied upon in construing the claims.

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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 10, 2005 and granted April 29, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 10, 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 10, 2005
GrantedApril 29, 2014
Term endedMarch 10, 2025
Patent numberCA 2500157 C
Classification (IPC)A61M25/00 +2 more

Timeline

Timeline From CIPO dates

2006200820102012201420162018202020222024Application filedMarch 10, 2005Patent grantedApril 29, 2014Term endedMarch 10, 2025

Sources & verification

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