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Expired Canadian patentCanada

Antioxidant composition of natural products and method of production thereof

CA 2098893 C · Owner: Niwa, Emiyo · Inventors: Niwa, Kozo; Niwa, Emiyo

CIPO record

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Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

An oily preparation and its production method where the activity of antioxidant substances as effective components are high and the penetrating ability into the inside of the cell in a disease portion is high, and its production method. The oily preparation is prepared by heating a cereal raw material comprising rice germ and/or wheat germ and soybean at a temperature not exceeding 100°C; making it fine powder after koji is added to the heated material to brew it; and adding thus brewed powder to an oil mixture comprising an oil obtained from sesame heated in the same manner and an oil obtained from raw sesame wherein, a ratio of oil mixture to a total amount of the fine powder and the oil …

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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 June 21, 1993 and granted May 16, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 21, 2013.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 21, 2015.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJune 21, 1993
GrantedMay 16, 2000
Term endedJune 21, 2013
Patent numberCA 2098893 C
Classification (IPC)C12P1/04 +2 more

Timeline

Timeline From CIPO dates

1994199619982000200220042006200820102012Application filedJune 21, 1993Patent grantedMay 16, 2000Term endedJune 21, 2013

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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.