Method of producing a 19p2 ligand
CA 2242086 A1 · Owner: Tanaka, Yoko · Inventors: Moriya, Takeo; Tanaka, Yoko; Suenaga, Masato
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Disclosed is a method for the production of a protein or peptide which can be used as a prophylactic and therapeutic drug for various diseases such as senile dementia. The method involves cleavage of a peptide bond on an amino terminal side of a cysteine residue in a fusion protein or peptide having a 19P2 ligand fused to a protein or peptide having the cysteine residue at the N-terminus. The cleavage may be carried out for example, by cyanylation followed by ammonolysis or hydrolysis.
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 June 26, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 26, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 26, 2020.
- 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.