Liquid detergent products
CA 2010444 C · Owner: Tomlinson, Alan D. · Inventors: Russell, Stephen W.; Tomlinson, Alan D.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A substantially non-aqueous liquid detergent product comprising a liquid surfactant phase and a solid phase dispersed therein, the liquid surfactant phase comprising an ethoxylated alcohol having an average of Pram 5 to 8 ethylene oxide (EO) groups per molecule at, least 60% having a number of ethylene oxide groups within ~2EO of the average and the alkyl chain distribution being such that less than 2% has a chain length of 9 or less carbon atoms, at least 90% has a chain length between l0 and 12 carbon atoms and less than 10% has a chain length of 13 or more carbon atoms said percentages being by weight of the ethoxylated alcohol.
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 February 20, 1990 and granted May 16, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 20, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 20, 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.