Liquid detergent composition
CA 1301582 C · Owner: The Procter & Gamble Company · Inventors: Pancheri, Eugene Joseph; Mao, Mark Hsiang-Kuen
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
High sudsing liquid dishwashing detergent compositions containing anionic surfactant symmetrical, polymeric nonionic surfactant and a betaine surfactant. The ratio of anionic surfactant:betaine surfactant is between 2:1 and 80:1 and the ratio of betaine surfactant:polymeric surfactant is greater than about 7:1. These compositions provide a means whereby the polymeric nonionic surfactant prevents grease from coalescing in suspension or redepositing at the grease surface on dishware without interfering with the effectiveness of the betaine surfactant in cutting grease away from the surface of dishware. The dishwashing detergent compositions provide optimal grease cutting and grease capacity.
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 May 26, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 26, 2009.
- 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.