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Expired Canadian patentCanada

Anticancer drugs

CA 1207669 A · Owner: Noda Shokukin Kogyo Co. Ltd. · Inventors: Maeda, Hiroaki; Sugano, Nobuhiko; Iizuka, Chiyokichi

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Abstract From the Canadian patent

Anticancer drugs consisting of sugar and protein composed primarily of xylose which are obtained from the nutrient medium and tissue-medium of Basidiomycetes such as Lentinus edodes which has been cultured in a solid medium rich is xylose such as bagasse is described. - 23 -

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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

  • Granted July 15, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 15, 2003.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledAugust 25, 1982
GrantedJuly 15, 1986
Term endedJuly 15, 2003
Patent numberCA 1207669 A
Classification (IPC)C12P1/02 +2 more

Timeline

Timeline From CIPO dates

1983198619891992199519982001Application filedAug 25, 1982Patent grantedJuly 15, 1986Term endedJuly 15, 2003

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