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Expired Canadian patentCanada

Method of accelerating and prolonging flowering in plants

CA 2116325 C · Owner: Abbott Laboratories · Inventors: Black-Schafer, Candace L.; Shafer, Warren E.; Carlson, Rolland D.

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

Treatment of cotton plants or flowering ornamental plants with a formulation comprising an agent effective to inhibit 1-aminicyclopropane-carboxylic acid synthase activity accelerates the flowering of cotton plants and accelerates and extends flower longevity of flowering ornamental plants particularly when such flowering plants are subjected to the stresses of the conditions of shipping. A preferred agent is L-trans-2-amino-4-(2-aminoethoxy)-3-butenoic acid (AVG) or a salt thereof.

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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 October 16, 1992 and granted May 4, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 16, 2012.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 16, 2014.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledOctober 16, 1992
GrantedMay 4, 1999
Term endedOctober 16, 2012
Patent numberCA 2116325 C
Classification (IPC)A01N37/44 +2 more

Timeline

Timeline From CIPO dates

1993199519971999200120032005200720092011Application filedOct 16, 1992Patent grantedMay 4, 1999Term endedOct 16, 2012

Sources & verification

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