Expired Canadian patentCanada
Oral hygiene compositions
CA 1255606 A · Owner: Johnson & Johnson · Inventors: Asano, Akira; Gaffar, Maria C.
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An oral hygiene composition containing an effective concentration of a pharmaceutically acceptable fluoride salt, a pharmaceutically acceptable zinc salt a specific, buffering agent. a suitable vehicle and having a pH of from about 3.5 to 6Ø
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 June 13, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 13, 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.
FiledApril 17, 1985
GrantedJune 13, 1989
Term endedJune 13, 2006
Patent numberCA 1255606 A
Classification (IPC)A61K8/21 +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.