Detergent compositions
CA 2284828 A1 · Owner: Boskamp, Jelles Vincent · Inventors: Appel, Peter Willem; Wagner, Henning; Boskamp, Jelles Vincent
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Detergent compositions in the form of tablets for fabric washing contain at , least 30 % but preferably not over 56 % of particles which contain most or all of the non-soap surfactant so that this provides from 20-50 % of these particles, which also contain water soluble detergency builder. The non-soap surfactant is a mixture of anionic and non-ionic surfactants where the amount of anionic surfactant is at least 1.5 times the amount of non-ionic surfactant. These particles are accompanied by at least 15 % of material which is other than soap or organic surfactant and which promotes rapid dissolution and disintegration of the tablet composition. The preferred material is sodium …
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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 March 18, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 18, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 18, 2020.
- 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.