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Expired Canadian patentCanada

Process for forming substantially uniform seed assemblages capableof growing f _hybrid and restorer soybean plants

CA 1297676 C · Owner: Davis, William H. · Inventors: Davis, William H.

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

Abstract of the Disclosure, An efficient process employing cytoplasmic male sterility is provided wherein seeds capable of forming F1 hybrid Glycine max plants and restorer plants for the same simultaneously are formed in bulk in a single planting area and the seed harvest subsequently is segregated to form two substantially uniform seed assemblages. The parent soybean plants are provided with distinctly colored maternally-derived seedcoats wherein the genes for seedcoat coloration are homozygous dominant in one parent and homozygous recessive in the other parent. The resulting seeds are harvested in bulk and are separated on the basis of the soybean seedcoat coloration. Soybean plants …

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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 March 24, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 24, 2009.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledApril 7, 1988
GrantedMarch 24, 1992
Term endedMarch 24, 2009
Patent numberCA 1297676 C
Classification (IPC)A01H3/00 +2 more

Timeline

Timeline From CIPO dates

1989199219951998200120042007Application filedApril 7, 1988Patent grantedMarch 24, 1992Term endedMarch 24, 2009

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