Liquid automatic dishwashing compositions providing silver protection
CA 1322707 C · Owner: The Procter & Gamble Company · Inventors: Gabriel, Steven Matthew; Roselle, Brian Joseph
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Thickened aqueous automatic dishwashing detergent compositions containing optional bleach-stable surfactant detergency builder, hypochlorite bleach (to yield available chlorine) a thickening agent and, metal salts of long chain hydroxy fatty acids. The compositions have a yield value between 50 and 350 dynes/cm2 and inhibit tarnishing of sterling and silver-plated flatware.
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.