Expired Canadian patentCanada
Anticariogenic compositions
CA 1325600 C · Owner: Purdue Research Foundation · Inventors: Kleber, Carl J.; Putt, Mark S.
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Improved anticariogenic oral preparations having a pH of about 2.5 to about 5.0 comprise an anticariogenically effective amount of a water-soluble aluminum salt in a surfactant-containing emulsion system suitable for use in the mouth.
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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 December 28, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 28, 2010.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledNovember 27, 1987
GrantedDecember 28, 1993
Term endedDecember 28, 2010
Patent numberCA 1325600 C
Classification (IPC)A61K8/26 +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.