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Expired Canadian patentCanada

Low-foaming hydrogen peroxide cleaning solution for organic soils

CA 2454437 C · Owner: Omidbakhsh, Navid · Inventors: Ramirez, Jose A.; Omidbakhsh, Navid

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 low-foaming cleaning solution and dry particulate formulation which can be diluted with water deionized water, or mixtures thereof, to form the cleaning solution. The cleaning solution has an alkaline pH which is preferably from about 8 to about 11.5 and consists essentially of at least one low foaming surfactant in a concentration of from about 0.005% to about 40% w/w of the total solution at least one active oxygen releasing compound in an amount effective to produce a hydrogen peroxide concentration of from about 0.005% to about 50% w/w of the total solution at least one builder in a concentration of from about 0.001% to about 50% w/w of the total solution and at least one diluent …

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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 December 30, 2003 and granted February 26, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 30, 2023.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 30, 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.
FiledDecember 30, 2003
GrantedFebruary 26, 2013
Term endedDecember 30, 2023
Patent numberCA 2454437 C
Classification (IPC)C11D3/39 +1 more

Timeline

Timeline From CIPO dates

2004200620082010201220142016201820202022Application filedDec 30, 2003Patent grantedFeb 26, 2013Term endedDec 30, 2023

Sources & verification

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