Patent Yard Sign in
Expired Canadian patentCanada

Process for forming seeds capable of growing hybrid soybean plants

CA 1297675 C · Owner: Ring Around Products, Inc. · Inventors: Davis, William H.

CIPO record

Overview

Drawings and full text

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

Open the CIPO record

Abstract From the Canadian patent

Abstract of the Disclosure, An improved process is provided for forming seeds capable of yielding F1 hybrid soybean plants (i.e. hybrid soybean plants of the first filial generation) or maintaining male sterile soybean plants useful in the production of male fertile F1 hybrid soybean plants. Male sterile soybean plants (i.e. seed parents) and the male fertile soybean plants (i.e. pollen parents) are caused to undergo cross-pollination with the aid of pollen-carrying bees under conditions wherein pollen transport from the male parents to the female parents is significantly increased. Such pollen transfer is enhanced by growing the parent soybean plants at a location where natural rainfall is …

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 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.
FiledAugust 25, 1986
GrantedMarch 24, 1992
Term endedMarch 24, 2009
Patent numberCA 1297675 C
Classification (IPC)A01H1/02 +1 more

Timeline

Timeline From CIPO dates

19871990199319961999200220052008Application filedAug 25, 1986Patent grantedMarch 24, 1992Term endedMarch 24, 2009

Sources & verification

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