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Expired Canadian patentCanada

Treatment apparatus for applying electrical impulses to the body of a patient

CA 2568581 C · Owner: Eumedic Limited · Inventors: Colthurst, James

CIPO record

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Abstract From the Canadian patent

The present invention provides a treatment device (10) for applying electrical impulses to a living body through the skin for treating a variety of clinical , conditions. The device comprises a pair of electrodes (32) for contact with the skin, and a waveform generator (46) for repeatedly generating an AC waveform for applying electrical impulses through the electrodes to the skin. A detector (50) detects changes in the skin impedance and generates detector output signals representing the skin impedance. Means (52) responsive to the detector output signals for monitor the responsivity of the skin and , indicator means (36, 58) activated by the monitoring means generate a first …

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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 October 28, 2004 and granted September 24, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 28, 2024.
  • 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.
FiledOctober 28, 2004
GrantedSeptember 24, 2013
Term endedOctober 28, 2024
Patent numberCA 2568581 C
Classification (IPC)A61N1/32

Timeline

Timeline From CIPO dates

2005200720092011201320152017201920212023Application filedOct 28, 2004Patent grantedSep 24, 2013Term endedOct 28, 2024

Sources & verification

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