Method of laundering clothing and detergent composition for the same
CA 2430374 C · Owner: Seo, Tomoki · Inventors: Arai, Kazuyoshi; Seo, Tomoki
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A detergent composition in which the main detergency is attributable to an alkaline inorganic salt and which further contains at least a resoiling inhibitor; and a method of laundering which comprises laundering clothes with the detergent composition. The detergent composition has detergency equal to or higher than that of synthetic detergents containing a surfactant as the main detergent ingredient and has excellent resoiling-preventive performance.
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 December 5, 2001 and granted January 11, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 5, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 5, 2023.
- 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.