Concentrated, stable, translucent or clear, fabric softening compositions
CA 2321544 A1 · Owner: Trinh, Toan · Inventors: Trinh, Toan; Frankenbach, Gayle Marie; Shaw, John Henry Jr.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Clear or translucent rinse-added fabric softening compositions are provided via the present invention which have reduced solvent or solvatrope levels. The composition according to the invention comprise: a) a fabric softening active; b) a principal solvent; c) a principal solvent extender; and d) the balance carriers and adjunct ingredients. Preferred enbodiments include low perfume level formulations. A preferred class of principal solvent extenders includes hydrophobic oils that aids in fluidizing the system which is characterized by a freezing point of less than 22 ~C for in a mixture of the principle solvent extender and 2,2,4-trimethyl-1,3-pentanediol (20 %/80 % by wt.). These …
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 2, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 2, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 2, 2021.
- 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.