Process for extraction of an organic salt from plants, the salt, and other similar salts
CA 2395599 C · Owner: Reznik, Rena · Inventors: Reznik, Rena
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to a completely water-soluble and long shelf-life antioxidant material comprising sodium rosmarinate which has been , extracted from tissue of plants of the Labiatae family without the necessity of , adding extraneous sodium ions, and aqueous solutions comprising the antioxidant material, to sodium rosmarinate isolated from the extracted antioxidant material, to rosmarinic acid salts other than the sodium salt or , admixtures thereof with the sodium salt obtained by cation-exchange with , thus-isolated sodium rosmarinate and to a process for preparing completely water-soluble antioxidant material comprising the sodium salt of rosmarinic acid, and its aqueous …
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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 December 22, 1999 and granted July 5, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 22, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 22, 2021.
- 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.