Expired Canadian patentCanada
Skin regenerating and hydrating cosmetic compositions and process for the preparation of the active ingredient
CA 1268422 C · Owner: Keri, Tibor · Inventors: Keri, Tibor; Kristof, Janos Nee Ilona Szvitil
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This invention is concerned with skin regenerating and hydrating cosmetic compositions which contain as active ingredient the extract of nodulous corn-stalk and/or corn-hypsophyll and/or corn-cob and/or corn-silk.
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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 May 1, 1990. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 1, 2007.
- 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 20, 1985
GrantedMay 1, 1990
Term endedMay 1, 2007
Patent numberCA 1268422 C
Classification (IPC)A61K8/97 +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.