Method for preparing a composition by mother-of-pearl extraction, comprising the mother-of-pearl integral components, composition obtained by said method and it's use in cosmetic and dermatology
CA 2386960 C · Owner: Chemouni, Alfred Edouard · Inventors: Lopez, Evelyne; Chemouni, Alfred Edouard
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention concerns a method for preparing a composition characterised in that it comprises steps which consist in: a) reducing mother-of-pearl into powder with grain size distribution ranging between about 1 and about 300 µm; b) placing the obtained powder in close contact with an extracting agent in the form of a hydroglycol solution of at least a collagen of at least a proteoglycan or a mixture thereof; then c) in collecting the extraction mixture formed by the close contact, constituting the desired composition. The invention also concerns the composition obtainable by said method. Said composition has very interesting properties relative to the skin and/or skin appendages in …
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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
- Filed October 5, 2000 and granted August 16, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 5, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 5, 2022.
- 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
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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.