Linear viscoelastic aqueous liquid automatic dishwasher detergent composition
CA 2069834 A1 · Owner: Colgate-Palmolive Company · Inventors: Shevade, Makarand; Dixit, Nagaraj S.; Drapier, Julien
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Automatic dishwasher detergent composition is formulated as a linear viscoelastic, pseudoplastic gel-like aqueous, product of exceptionally good physical stability low bottle, residue, low cup leakage, and improved cleaning performance Linear viscoelasticity and pseudoplastic behavior is attributed by incorporation of cross-linked high molecular weight polyacrylic acid type thickener which is further modified by the incorporation of a clay flow modifier. Potassium to sodium weight ratios of at least 1/2 minimize amount of undissolved solid particles to further contribute to stability and pourability. Stearic acid or other fatty acid or salt further improve physical stability.
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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 28, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 28, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 28, 2014.
- 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.