General-purpose cleaning composition
CA 1288019 C · Owner: Unilever Plc · Inventors: Clarke, David Ellis
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A liquid general-purpose cleaner having improved non-, streak and cleaning properties is obtained if in a, liquid-compatible medium which comprises a nonionic surfactant, an at least partially esterified resin and water or a mixture of water and a water-miscible organic solvent, as nonionic a topped nonionic surfactant is used containing less than 2% by weight of non-alkoxylated material and less than 4% by weight of mono-alkoxylated material. By using this nonionic surfactant, less partially esterified resin and less perfume are required to achieve effects similar to those obtained when a non-topped nonionic surfactant is used.
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
- Granted August 27, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 27, 2008.
- 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.