A granular composition comprising a blend of nonionic surfactant and hydrocarbon
CA 2446433 C · Owner: The Sun Products Corporation · Inventors: Instone, Terry; Wilson, John Edley; Nabi, Rafiq Mohammed
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
In order to improve the dispersion of nonionic surfactant into wash water from a granule in which the nonionic surfactant is carried on a water-insoluble granular material, the nonionic surfactant is intimately blended with a waterinsoluble liquid. Preferred water-insoluble liquids include hydrocarbons for , example, paraffins.
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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 May 6, 2002 and granted January 24, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 6, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 6, 2024.
- 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.