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Canadian application, no grantCanada

Novel catalytic activities of oxidoreductases for oxidation and/or bleaching

CA 2514475 A1 · Owner: Call, Krimhild · Inventors: Call, Hans-Peter

CIPO record

Overview

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Abstract From the Canadian patent

An oxidation and/or bleaching system is disclosed comprising: a) , oxidoreductases such as laccases and/or peroxidases applied individually or in combination, in the presence of the corresponding co-substrate 0<sb>2</sb> H<sb>2</sb>0<sb>2</sb>, organic peroxides per-acids etc. for the activation , of compounds of the class of oxohydrocarbons the class of urazoles and , hydrazides the class of hydantoins and the class of nitriles (cyano) compounds and b) additional carbonyl compounds (ketones aldehydes) are , applied which can form active oxygen species such as dioxiranes, dioxetanes , and peroxy compounds amongst others, or other reactive compounds or , transition states such as radicals …

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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 January 26, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 26, 2023.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 26, 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.
FiledJanuary 26, 2003
GrantedNo grant recorded
Term endedJanuary 26, 2023
Patent numberCA 2514475 A1
Classification (IPC)D21C9/10 +2 more

Timeline

Timeline From CIPO dates

2004200620082010201220142016201820202022Application filedJan 26, 2003Term endedJan 26, 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.