Method for increasing the ability of a plant species to undergo androgenesis, and products produced therefrom
CA 2004378 C · Owner: Mycogen Corporation · Inventors: Pescitelli, Stephen M.; Petolino, Joseph F.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This invention provides a method for producing germplasm of plant species exhibiting enhanced response to in vitro culture of male gametophytes. The method is used as a selection criterion for genes favoring in vitro androgenesis. After subjecting anthers to standard anther culture regeneration procedures the regenerated, plants are intermated and self-pollinated to generate valuable genetic variability for improved culture response. The transfer of increased male gametophyte culturability to other selected germplasm is also described. 37,427A-F
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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 December 1, 1989 and granted April 10, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 1, 2009.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 1, 2011.
- 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.