Expired Canadian patentCanada
Toothpaste compositions
CA 1254837 A · Owner: The Procter & Gamble Company · Inventors: Woo, Ricky A.
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Toothpastes are disclosed which contain water humectant, a, dentifrice abrasive, a carboxyvinyl polymer and carrageenan.
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 May 30, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 30, 2006.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledSeptember 13, 1985
GrantedMay 30, 1989
Term endedMay 30, 2006
Patent numberCA 1254837 A
Classification (IPC)A61K8/73 +2 more
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.