Bleach and method of bleaching
CA 1069259 A · Owner: Colgate-Palmolive Company · Inventors: Gray, Frederick W.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An activated peroxy compound bleaching composition comprising a peroxy bleaching compound and a mixture of activators for such compound, at least one of which is an acyl activator which reacts with the peroxy anion of the peroxy compound to form a peracid and, the other of which is a triazine compound from which a peroxy anion from the peroxy compound displaces chlorine to form a hydroperoxide of the triazine compound.
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 January 8, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 8, 1997.
- 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.