Antioxidant compositions and methods
CA 1291711 C · Owner: Bar Ilan University · Inventors: Grossman, Shlomo; Albeck, Michael
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Antioxidant compositions are obtained by aqueous extraction of plant tissues derived from Spinacia oleracea Trifolium, Medicago, sativa, Zea mays, Nicotiana tabacum Penicillaria, Allium and Algae. The antioxidant is preferably recovered from an aqueous solution by means of a chromatographic separation process. The antioxidant may be applied to the skin as a cosmetic to improve the appearance of the skin.
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
- Granted November 5, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 5, 2008.
- 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.