Insectidal toxins from the parasitic wasp bracon hebetor
CA 2126970 A1 · Owner: Novartis Ag · Inventors: Leisy, Douglas J.; Quistad, Gary B.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Novel polypeptides are isolated from the venom of the parasitic wasp, Bracon hebetor, and are designated Brh-I to Brh-V. These polypeptides are paralytic and/or toxic to insects. The entire amino acid sequence of Brh-I and the DNA encoding it is also determined. These polypeptides may be cloned into a baculovirus and, used for insect control.
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 February 25, 1993. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 25, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 25, 2015.
- 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.