High-carbonate automatic dishwashing detergent with decreased calcium salt deposition
CA 1322703 C · Owner: The Clorox Company · Inventors: Smith, William L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An automatic dishwashing detergent primarily comprised of an alkali-metal carbonate as the sole builder alkali-metal, silicates, and a calcium precipitation inhibitor system consisting of a low foaming surfactant a low molecular weight, polycarboxylic acid and a small amount of a threshold, inhibition agent. Optionally halogen peroxygen or peracid, bleaching species enzymes fragrances, dyes and other adjuncts, may be included. The composition provides good cleaning performance especially on starchy soils and no appreciable, calcium precipitates result even in water having a hardness, of at least about 400 ppm.
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 October 5, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 5, 2010.
- 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.