Concentrated, water dispersible, stable, fabric softening compositions
CA 2226565 C · Owner: Wahl, Errol Hoffman · Inventors: Declercq, Marc Johan; Okamoto, Mitsuyo; Back, Deborah Jean
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention discloses an aqueous concentrated, stable, translucent, or preferably clear, rinse added liquid fabric softening compositions which provide excellent water dispersibility in rinse water comprising a fabric , softening active and a principal solvent. In order to achieve the main object of the invention, namely excellent water dispersibility the molar ratio of a , principal solvent to a fabric softening active should be not less than 3 preferably from about 3.6 to about 100.
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 July 11, 1996 and granted November 27, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 11, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 11, 2018.
- 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.