Phase stable, thickened aqueous abrasive bleaching cleanser
CA 2134062 A1 · Owner: Choy, Clement K. · Inventors: Penticoff, Amy M.; Argo, Brian P.; Garabedian, Aram Jr.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
31-, Abstract of the Disclosure, The invention provides a phase stable thickened aqueous, abrasive cleanser and a method for preparing it said cleanser comprising:, a) an effective amount of a cross-linked polyacrylate; b) an effective amount of at least one bleach-stable surfactant; c) an effective amount of a low salt, high purity hypochlorite; d) an effective amount of a pH-adjusting agent; e) an effective amount of abrasive; and f) the remainder as water.
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
- Filed October 21, 1994. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 21, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 21, 2016.
- 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.