Toilet bowl detergent system containing blooming perfume
CA 2249293 C · Owner: Chung, Alex Haejoon · Inventors: Chung, Alex Haejoon; Blondin-Cook, Patricia Ann; Trinh, Toan
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Toilet bowl detergent compositions, preferably blocks of the "in-tank" or "rimblock" types, contain from about 0.1 % to about 10 % of a blooming perfume composition comprising blooming perfume ingredients selected from the group consisting of: ingredients having a boiling point of less than about 260 ~C and a ClogP of at least about 3, and wherein said perfume composition comprises at least 5 different blooming perfume ingredients a cleaning system , comprising: detergent surfactant preferably of the amphoteric type more , preferably zwitterionic, even more preferably one that contains a carboxylate group and a cationic group, and even more preferably a fatty acid amidoalkylene …
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 March 8, 1997 and granted July 2, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 8, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 8, 2019.
- 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.