Solid cast warewashing composition
CA 1304649 C · Owner: Ecolab Inc. · Inventors: Olson, Keith Edward
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Solid cast detergent-containing articles are produced for use in automatic washing machines. A liquid detergent composition is cast into a mold where it is allowed to solidify. The cast detergent composition includes alkali metal metasilicate, alkali metal condensed phosphate an, encapsulated bleaching source, and water for hydration. The composition optionally further includes a dye a, perfume, a surfactant, a defoamer, an additional sequestering agent such as an alkali metal salt of a polyacrylic compound, a neutral soluble salt such as an alkali metal sulphate or an alkali metal chloride an, alkali compound such as an alkali metal hydroxide an, alkali metal carbonate, an alkali metal …
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 July 7, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 7, 2009.
- 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.