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Expired Canadian patentCanada

Defibrillation electrode and method for employing gatling discharge defibrillation

CA 2064751 C · Owner: Mirowski, Mieczyslaw · Inventors: Heil, Ronald W. Jr.; Dahl, Roger W.; Mirowski, Mieczyslaw

CIPO record

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Abstract From the Canadian patent

An implantable defibrillation/cardioversion system and method comprising an electrode having a plurality of discrete electrically conductive segments. The conductive segments are electrically isolated from each other and electrically connected to a defibrillation/cardioversion unit. An electrical pulse block is generated and chopped into a plurality of discrete pulse segments by the defibrillation/cardioversion unit and applied to the electrode so that each conductive segment receives a particular electrical pulse assigned from the series of pulses. In this way the concentration of gas, generated from ionic current produced by a high energy defibrillation pulse is reduced and more energy is …

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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 June 6, 1990 and granted December 15, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 6, 2010.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 6, 2012.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJune 6, 1990
GrantedDecember 15, 1998
Term endedJune 6, 2010
Patent numberCA 2064751 C
Classification (IPC)A61N1/39 +1 more

Timeline

Timeline From CIPO dates

1991199319951997199920012003200520072009Application filedJune 6, 1990Patent grantedDec 15, 1998Term endedJune 6, 2010

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