Water-soluble ginger root extract
CA 2396809 C · Owner: Moriwaki, Shigeru · Inventors: Moriwaki, Shigeru; Tsuji, Naoko; Shibuya, Yusuke
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Provided are a water-soluble ginger root extract which is a water extract or a hydrous alcohol extract of a ginger root and is substantially free of gingerols; and a hair growth inhibitor and a preparation for external use each containing the extract. The water-soluble ginger root extract of the present invention causes less skin irritation because of being substantially free of gingerols and has excellent body- hair growth inhibiting effects so that it is useful as a hair grown inhibitor and a preparation for external use each having a high degree of safety.
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 August 2, 2002 and granted September 27, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 2, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 2, 2024.
- 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.