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Expired Canadian patentCanada

Electrode assembly for sealing and cutting tissue and method for performing same

CA 2500593 C · Owner: Johnson, Kristin D. · Inventors: Couture, Gary M.; Johnson, Kristin D.

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

An electrode assembly for use with an instrument for sealing vessels includes a pair of opposing first and second jaw members which are movable relative to one another from a first position wherein the jaw members are disposed in spaced relation relative to one another to a second position wherein the jaw members cooperate to grasp tissue therebetween. Each jaw member includes an electrically conductive tissue contacting surface which is connected to an electrosurgical energy source such that the tissue contacting surfaces are capable of conducting electrosurgical energy through the tissue held therebetween to effect a seal. The first jaw member has an electrically conductive …

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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 September 11, 2003 and granted November 13, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 11, 2023.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 11, 2025.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledSeptember 11, 2003
GrantedNovember 13, 2012
Term endedSeptember 11, 2023
Patent numberCA 2500593 C
Classification (IPC)A61B18/14 +1 more

Timeline

Timeline From CIPO dates

2004200620082010201220142016201820202022Application filedSep 11, 2003Patent grantedNov 13, 2012Term endedSep 11, 2023

Sources & verification

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