Canadian application, no grantCanada
External agent for the skin and whitening agent
CA 2404012 A1 · Owner: Kuno, Noriyasu · Inventors: Shinohara, Gou; Kuno, Noriyasu
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 external preparation for the skin containing one or more members selected from the group consisting of maslinic acid erythrodiol, uvaol, betulinic , acid, betulin and physiologically acceptable salts and derivatives of these compounds.
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
- Filed March 30, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 30, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 30, 2023.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMarch 30, 2001
GrantedNo grant recorded
Term endedMarch 30, 2021
Patent numberCA 2404012 A1
Classification (IPC)A61K8/58 +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.