Machine dishwashing composition
CA 1302834 C · Owner: Unilever Plc · Inventors: Santos, Edward; Aronson, Michael; Lock, Michele Renee
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Machine Dishwashing Composition Automatic dishwasher powder detergents comprise a detergency builder, an alkaline agent and a particulate oxidising component. The oxidising component is halogen based and in the form of particles comprising a core consisting essentially of an oxidizing material having at least one reactive chlorine or bromine in its molecular structure and, a polycarboxylate coating selected from homo-and co-polymers of carboxylic acids, carboxylic anhydrides alkyl partial, esters thereof and their salt derivatives said coating being, free of soap and fatty acids.
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 June 9, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 9, 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.