Dryer-activated fabric conditioning and antistatic compositions with improved perfume longevity
CA 2226344 C · Owner: Severns, John Cort · Inventors: Sivik, Mark Robert; Severns, John Cort; Hartman, Frederick Anthony
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to dryer-activated fabric softening compositions comprising: (A) fabric softening compounds; (B) a non-allylic perfume alcohol ester; and (C) optionally, (1) a carboxylic acid salt of a tertiary amine and/or a tertiary amine ester; and (2) a nonionic softener; wherein preferably, the Iodine Value of the total number of fatty acyl groups present in (A), (C)(1), and (C)(2) is from about 3 to about 60. These compositions exxhibit good antistatic properties as well as improved delivery from a substrate.
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 June 14, 1996 and granted November 20, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 14, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 14, 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.