The use of steroids having a phenolic a-ring structure for prophylaxis and therapy of radical-mediated cellular trauma
CA 2176370 C · Owner: Oettel, Michael · Inventors: Ponsold, Kurt; Menzenbach, Bernd; Schroder, Jens
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention pertains to new pharmaceutical preparations for prophylaxis and therapy of radical-mediated cell damage consisting of steroids with phenolic A-ring structure-except the esterogens estradiol estrone, estrione and their 2-hydroxy derivates as well as the steroids with cyclic substituents or with am amino group at the terminal C atom of the aliphatic C-17 side chain-and of pharmaceutical adjuvants. These preparations are characterized by a high-level inhibiting action against cell and tissue changes such as lipid peroxidation, and the oxidation of low density lipoprotein (LPL) cholesterol caused by reactive oxygen species (ROS) free oxygen radicals and other forms, of …
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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 November 8, 1994 and granted June 22, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 8, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 8, 2016.
- 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.