Aqueous extract of red vine leave and use thereof for improving blood circulation
CA 2512147 C · Owner: Schaefer, Eckhard · Inventors: Kiesewetter, Holger; Schaefer, Eckhard; Esperester, Anke
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 method for the enhancement of the blood circulation and/or the oxygen supply of the lower extremities which method comprises , administering an effective amount of a pharmaceutical or dietary composition containing an aqueous extract of red vine leaves to the a person in need thereof.
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 December 12, 2003 and granted September 16, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 12, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 12, 2025.
- 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.