High level of expression of ingap
CA 2270412 A1 · Owner: Eastern Virginia Medical School Of The Medical College Of Hampton Roads · Inventors: Vinik, Aaron I.; Barlow, Scott W.; Pittenger, Gary I.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Removal of the nucleotide sequence encoding the signal peptide from the INGAP coding sequence allows bacteria to express substantial amounts of INGAP activity. Previous attempts have provided only low yields of INGAP possibly , because the signal sequence of INGAP is toxic to bacteria.
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 30, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 30, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 30, 2019.
- 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.