Aqueous liquid bleach compositions
CA 2597805 C · Owner: O'Keeffe, Joanne Clare · Inventors: O'Keeffe, Joanne Clare; Thompson, Katherine Mary; Ryan, Philip Michael
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention concerns aqueous liquid bleaching compositions comprising a hypochlorite salt and a quaternary ammonium salt characterised in that the ammonium salt has the general formula: R1R2R3R4N+ Xwherein R1 is a C10-C20 , alkyl group, each of R2 R3 and R4 independently is a C1-C3 alkyl group and X is an inorganic anion and the composition comprises a thickening system comprised of amine oxide surfactant and fatty acid.
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 January 31, 2006 and granted June 18, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 31, 2026.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.