Detergent for automatic dishwasher
CA 1325367 C · Owner: Colgate-Palmolive · Inventors: Lancz, Albert J.; Lai, Kuo-Yann
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A thixotropic aqueous detergent for improved performance in household automatic dishwashers comprises a liquid phase which is water containing dissolved alkali metal tripolyphosphate and alkali metal silicate and dispersed non-swelling clay thickener and a solid phase which is mainly sodium tripolyphosphate. It contains a limited proportion of a potassium compound, to give a K:Na weight ratio in the range of about 0.4 to 0.5. A process for making such slurries is also disclosed.
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 December 21, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 21, 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.