Dentifrice containing a siliceous polishing material and resinous poly(ethylene oxide)
CA 1191791 A · Owner: Colgate-Palmolive Company · Inventors: Kiozpeoplou, Diana K.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A dentifrice containing a siliceous polishing material and binding or gelling agent including resinous poly(ethylene oxide). The polishing agent flocculates in the presence of the resinous poly(ethylene oxide) and provides the dentifrice with desirable stain removal effectiveness without unduly raising dentin abrasion. Foaming character is also achieved when a polyoxyethylenepolyoxypropylene block copolymer and xanthan are present,
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 August 13, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 13, 2002.
- 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.