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Expired Canadian patentCanada

Electroporation system with voltage control feedback for clinical applications

CA 2216131 C · Owner: Genetronics, Inc. · Inventors: Hofmann, Gunter A.

CIPO record

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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 apparatus for the application of electroporation to a portion of the body of a patient, comprises a support member a pair of electrodes , adjustably mounted on the support member for movement toward and away from one another for positioning on opposite sides of a body portion to be electroporated, a sensing element for sensing a distance between the electrodes and generating a distance signal proportionate to the distance between said electrodes, and means responsive to said distance signal for applying pulses of high amplitude electric signal to the electrodes proportionate to the distance between said electrodes.

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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 April 10, 1995 and granted February 5, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 10, 2015.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 10, 2017.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledApril 10, 1995
GrantedFebruary 5, 2002
Term endedApril 10, 2015
Patent numberCA 2216131 C
Classification (IPC)A61N1/30 +1 more

Timeline

Timeline From CIPO dates

1996199820002002200420062008201020122014Application filedApril 10, 1995Patent grantedFeb 5, 2002Term endedApril 10, 2015

Sources & verification

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