Conotoxin peptides
CA 2172989 C · Owner: Olivera, Baldomero M. · Inventors: Olivera, Baldomero M.; Hillyard, David R.; Cruz, Lourdes J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention is directed to A-lineage conotoxin peptides which are conotoxin , peptides that have strong homology in the signal sequence and the 3'untranslated region of the genes coding for these peptides to the sequences in the .alpha.-conotoxin peptides. The A-lineage conotoxin peptides include the .alpha.-conotoxin peptides, the .alpha.-conotoxin-like peptides and the conotoxin peptides, described further below. The .alpha.-conotoxinpeptides generally share a "core" sequence motif. This core sequence is termed the .alpha.3/5 core and is represented as Cys-Cys-Xaa-Xaa-Xaa-Cys-Xaa-Xaa-Xaa-Xaa- Xaa-Cys (SEQ ID NO:1). The .alpha.-conotoxin-like peptides generally share a core sequence …
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 October 19, 1994 and granted September 17, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 19, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 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.