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Canadian application, no grantCanada

Treatment of pain and of the nervous system

CA 2276963 A1 · Owner: Rhodes, Donald A. · Inventors: Rhodes, Donald A.

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 method of treating pain and treating ailments associated with imbalances in the somatic and/or sympathetic nervous system includes delivering electricity through a circuit in the body. The circuit includes at least four nerves leading from at least two of the patient's extremities to various nerve roots adjacent the spinal column. Electrical energy from an electrical interferential therapy device is delivered though electrodes on the extremities adjacent the nerve endings. Patients report a reduction in pain and an improvement in objective and subjective symptoms suggesting some effect on the autonomic, particularly the sympathetic nervous system, and the somatic nervous system.

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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 July 6, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 6, 2019.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 6, 2021.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJuly 6, 1999
GrantedNo grant recorded
Term endedJuly 6, 2019
Patent numberCA 2276963 A1
Classification (IPC)A61N1/00 +1 more

Timeline

Timeline From CIPO dates

2000200220042006200820102012201420162018Application filedJuly 6, 1999Term endedJuly 6, 2019

Sources & verification

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