Liquid bleaching compositions
CA 1266153 C · Owner: Overton, Colin · Inventors: Machin, David; Overton, Colin; Martin, Alexander
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention pertains to an aqueous stable thickened low-pH bleaching composition comprising (a) a thickening surfactant selected from the group consisting of amine-oxides, amines and cationic detergent actives, (b) a cold-water soluble inorganic peroxy compound (c) a strong acid, and, (d) optionally a bleach-compatible electrolyte salt.
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
- Granted February 27, 1990. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 27, 2007.
- 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.