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Expired Canadian patentCanada

Maturation of somatic embryos

CA 2323862 C · Owner: 7273126 Canada Inc. · Inventors: Klimaszewska, Krystyna; Polonenko, Daniel R.; Stodola, Thomas F.

CIPO record

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Abstract From the Canadian patent

A method of developing and maturing somatic embryos in a growth environment which method comprises manipulating the water availability of the growth environment using a physical means of control. The invention also provides a growth environment for maturing somatic embryos wherein the water potential , of the embryogenic tissue is manipulated to optimize somatic embryo development and maturation. The invention further relates to a somatic embryo matured by the method of the invention. In the invention a physical means of , control is used to affect the water potential of the embryogenic tissue and developing somatic embryos growth medium rather than a chemical means such as , the …

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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 August 14, 1998 and granted July 5, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 14, 2018.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 14, 2020.
  • 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 14, 1998
GrantedJuly 5, 2011
Term endedAugust 14, 2018
Patent numberCA 2323862 C
Classification (IPC)A01H4/00

Timeline

Timeline From CIPO dates

1999200120032005200720092011201320152017Application filedAug 14, 1998Patent grantedJuly 5, 2011Term endedAug 14, 2018

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