Cytochrome c and its gene
CA 2226906 A1 · Owner: Hoshino, Tatsuo · Inventors: Asakura, Akira; Shinjoh, Masako; Tomiyama, Noribumi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention is directed to a DNA sequence comprising a DNA sequence which encodes upon expression in a prokaryotic or eukaryotic host cell for a polypeptides having at least a part of the primary structure and one of the biological properties of cytochrome c551, a polypeptide encoded by said DNA sequence an expression vector, comprising such DNA sequence a host cell transformed by such vector a process for the, production using such host cell and the use of such cytochrome c for the production of vitamin C.
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 March 27, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 27, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 27, 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.