Derivatives of tachyplesin having inhibitory activity towards plant pathogenic fungi
CA 2179301 C · Owner: Pioneer Hi-Bred International, Inc. · Inventors: Rao, A. Gururaj; Putnam, Rebecca J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Certain specific derivatives of the 17-amino acid peptide tachyplesin has been found to have antimicrobial activity against plant pathogens. In a preferred embodiment, plant resistance to diseases caused by plant pathogens which are susceptible to these peptides is produced by inserting into the cells of a plant a gene whose expression causes production of one or more of the peptides of this invention in the plant in antimicrobial amounts.
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 December 19, 1994 and granted July 13, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 19, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 19, 2016.
- 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.