Production of female-sterile plants
CA 2038933 A1 · Owner: Van Montagu, Marc · Inventors: Van Montagu, Marc; De Souza, Maria-Helena; Van Emmelo, John
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A plant, the nuclear genome of which is transformed with a foreign DNA sequence encoding a product which selectively disrupts the metabolism functioning and/or development of cells of the flowers particularly one or more of their female organs or the, seeds or the embryos of the plant. The foreign DNA sequence also optionally encodes a marker.
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
- Filed August 1, 1990. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 1, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 1, 2012.
- 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.