Methods for producing cotyledonary pine embryos utilizing a gibberellin
CA 2424427 C · Owner: Holmstrom, Diane · Inventors: Holmstrom, Diane; Gupta, Pramod K.; Larson, Bonnie
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention provides methods for producing cotyledonary pine embryos. The methods of the invention each include the step of culturing embryogenic pine tissue in or on, a medium including at least one gibberellin to yield cotyledonary pine embryos. In some embodiments an absorbent composition, such as activated charcoal is included in the medium to further promote production of cotyledonary pine embryos.
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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 April 3, 2003 and granted December 10, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 3, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 3, 2025.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.