Detergent composition
CA 2026747 A1 · Owner: Unilever Plc · Inventors: Hall, Peter J.; Hull, Michael; Van Kralingen, Cornelis G.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A fabric washing composition comprises a surfactant system including an O-alkanoyl derivative of a reducing hexose sugar such as a 6-O-alkanoyl glucoside together, with a cosurfactant. The composition has advantages in terms of cost, biodegradability and performance.
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 October 2, 1990. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 2, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 2, 2012.
- 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.