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Expired Canadian patentCanada

Method of cleaning and/or disinfecting and sterilizing hemodyalisis apparatus

CA 2000586 C · Owner: Riera Aixala, Jose · Inventors: Riera Aixala, Jose

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Abstract From the Canadian patent

A method for cleaning and/or disinfecting and sterilizing hemodyalisis apparatus consisting in mixing a basic composition comprising the chlorite ion with an acid composition comprising lactic acid in a ratio of the acid composition to the basic composition ranging from 1:2 to 4:4, feeding the mixture thus obtained and admixed with water into the hemodyalisis apparatus the ratio of the mixture to water being of about 1:34 and circulating the final solutin in the apparatus where take place the dilution of the mixture in water and the reaction between the basic composition and the acid composition.

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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 12, 1989 and granted April 14, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 12, 2009.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 12, 2011.
  • 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 12, 1989
GrantedApril 14, 1998
Term endedOctober 12, 2009
Patent numberCA 2000586 C
Classification (IPC)A61L2/18 +2 more

Sources & verification

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