Process for producing peptide
CA 2076320 C · Owner: Onai, Seiko · Inventors: Suzuki, Yuji; Yabuta, Masayuki; Onai, Seiko
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A process for production of peptide (target peptide) comprising: A) culturing host cells transformed with plasmid able to express a gene coding for a fusion protein, represented in the following formula: A-L-B, wherein, B is a target peptide, A is a protective peptide which is a fragment of 90-210, amino acids from the N-terminal of E. coli-.beta.-galactosidase polypeptide and L is a, linker peptide positioned between the C-terminal of said protective peptide and the N-, terminal of said target peptide and selected so that said fusion protein is treated by an, enzyme or chemical substance the above-mentioned target peptide is separated and, said linker peptide has basic amino acid …
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 August 18, 1992 and granted October 7, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 18, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 18, 2014.
- 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.