Thickened aqueous cleanser
CA 1291392 C · Owner: Garabedian, Aram · Inventors: Spurgeon, Colleen June; Choy, Clement Kin-Man; Garabedian, Aram
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention discloses various embodiments and examples of a thickened aqueous abrasive cleanser capable of maintaining a smoothly flowable or plastic consistency over long periods of time. The cleaner is characterized by the ability to stably suspend abrasives while exhibiting excellent shelf stability over long periods of time with substantially no syneresis and being suitable for use where-environmental requirements prevent the use of phosphates. This cleaner has the following ingredients:, (a) a colloidal alumina thickener having an average particle size, in dispersion, of no more than about one micron;, (b) an electrolyte/buffer; (c) a surfactant system including two …
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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 29, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 29, 2008.
- 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.