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Expired Canadian patentCanada

Enhanced activity hydrogen peroxide disinfectant

CA 2475327 C · Owner: Diversey Us Holdings Llc · Inventors: Omidbakhsh, Navid; Ramirez, Jose A.

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Abstract From the Canadian patent

An enhanced activity aqueous disinfecting solution having a pH of from about 0.5 to about 6 and consisting essentially of (i) hydrogen peroxide in a concentration of from about 0.05 to about 8 w/w% of the solution; (ii) at least one anionic surfactant selected from the group consisting of C8 to C16 alkyl aryl sulfonic acids and alkali metal ammonium, ethanolamine, calcium , and magnesium salts thereof sulfonated C12 to C22 carboxylic acids and alkali metal, ammonium, calcium and magnesium salts thereof C6 to C22 alkyl diphenyl , oxide sulfonic acids and alkali metal ammonium, ethanolamine, calcium and , magnesium salts thereof naphthalene sulfonic acids and alkali metal ammonium, …

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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 February 12, 2003 and granted January 17, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 12, 2023.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 12, 2025.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledFebruary 12, 2003
GrantedJanuary 17, 2012
Term endedFebruary 12, 2023
Patent numberCA 2475327 C
Classification (IPC)A01N59/00 +2 more

Timeline

Timeline From CIPO dates

2004200620082010201220142016201820202022Application filedFeb 12, 2003Patent grantedJan 17, 2012Term endedFeb 12, 2023

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