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Expired Canadian patentCanada

Method of regenerating soybeans from cultured soybean cotyledonary nodes

CA 1268631 C · Owner: Monsanto Company · Inventors: Wright, Martha S.

CIPO record

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Abstract From the Canadian patent

The present invention is directed to a method of regenerating soybean plants from callus culture. Briefly, the method comprises the following steps:, a. germinating soybean seeds on nutrient medium containing a cytokinin to produce a donor plant; b. excising the cotyledonary node region from said donor plant;, c. culturing the excised nodal tissue on a nutrient medium containing a cytokinin until callus tissue develops which contains shoots; and d. removing said shoots from said callus and rooting said shoots in nutrient medium free from exogenous hormone to form a plantlet.

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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 May 8, 1990. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 8, 2007.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledNovember 23, 1984
GrantedMay 8, 1990
Term endedMay 8, 2007
Patent numberCA 1268631 C
Classification (IPC)C12N5/00 +1 more

Timeline

Timeline From CIPO dates

19851988199119941997200020032006Application filedNov 23, 1984Patent grantedMay 8, 1990Term endedMay 8, 2007

Sources & verification

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