Rinse cycle fabric softener formulations containing betaine ester derivatives and method for improving the washing performance of detergents
CA 2482998 A1 · Owner: Fender, Michael · Inventors: Tomuschat, Philipp; Weyershausen, Bernd; Fender, Michael
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to washing-softening rinsing formulations containing betaine ester derivatives which can be hydrolysed and liquidic esterquatsoftening rinsing formulations for the controlled release of surfactants and a method for improving the washing performance of washing agents by using the washing-softening rinsing formulations.
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 April 15, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 15, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 15, 2025.
- 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.