Stable dentifrice containing dextranase
CA 1258640 A · Owner: Colgate-Palmolive Company · Inventors: Ren, Peter; Esposito, Anthony; Gaffar, Abdul
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Stable oral compositions containing an anionic surfactant dextranase and a polycationic stabilizer including proteins poly-, peptides and polyamines, which stabilizes the dextranase in the presence of the anionic surfactant without reducing its foaming and cleansing properties.
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 22, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 22, 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.
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.