Liquid cleaning compositions
CA 2177068 A1 · Owner: Erilli, Rita · Inventors: Misselyn, Anne Marie; Mahieu, Marianne; Erilli, Rita
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An improvement is described in microemulsion compositions which contain an anionic detergent a nonionic surfactant, a grease, release agent a hydrocarbon ingredient, and water which comprises the use of a water-insoluble odoriferous perfume as the essential hydrocarbon ingredient in a proportion sufficient to form either a dilute o/w microemulsion composition containing by weight, 1 % to 20, % of an anionic detergent 6 to 50 % of a cosurfactant, 0.1 % to 10 % of a grease release agent 0.4 % to 10 % of perfume and the balance being water as well as all purpose hard surface cleaning composition or light duty liquid detergent compositions which contain a grease release agent.
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 November 18, 1994. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 18, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 18, 2016.
- 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.