Pollen specific promoter
CA 2319079 A1 · Owner: Zeneca Limited · Inventors: Rogers, Hilary Joan; Greenland, Andrew James; Hussey, Patrick Joseph
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A recombinant nucleic acid which comprises a promoter sequence of the ZmC5 gene in maize, or a variant or fragment thereof which acts as a promoter in , pollen. The DNA sequence of the promoter is depicted in figure 5. Expression cassettes and expression systems as well as transformation methods transformed plants including the promoter sequence of the invention are also claimed. The nucleic acid may be used inter alia in the production of male sterile plants and/or hybrids as well as in the transformation of pollen.
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 January 22, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 22, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 22, 2021.
- 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.