Patent Yard Sign in
Expired Canadian patentCanada

Water for medical treatment, production method thereof, and dialysis apparatus using water for medical treatment as dialysis liquid

CA 2303676 C · Owner: Nihon Trim Co. Ltd. · Inventors: Morisawa, Shinkatsu

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

Open the CIPO record

Abstract From the Canadian patent

A dialysis apparatus that utilizes water as dialysis liquid. The water has the capacity to abolish the Superoxide Anion Radical (SAR) which may trigger various diseases. The apparatus comprises electrolytic water generation means for electrolyzing water filter means for filtering cathode water sent from the electrolytic water generation means and dialysis liquid supply means for supplying the cathode water introduced from the filter means as dialysis liquid wherein the cathode water includes water having an oxidation-reduction potential Value Within a range of -150 mV ~ 0 mV measured using a platinum electrode.

Read the whole patent

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 4, 1996 and granted September 16, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 4, 2016.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 4, 2018.
  • 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 4, 1996
GrantedSeptember 16, 2003
Term endedJuly 4, 2016
Patent numberCA 2303676 C
Classification (IPC)A61M1/14

Timeline

Timeline From CIPO dates

1997199920012003200520072009201120132015Application filedJuly 4, 1996Patent grantedSep 16, 2003Term endedJuly 4, 2016

Sources & verification

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