Transfected cells and methods for treating diabetes
CA 2330834 A1 · Owner: Ramesh, Nagarajan · Inventors: Ramesh, Nagarajan; Osborne, William R. A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention provides an isolated population of cells containing an expressible nucleic acid encoding proinsulin containing a proinsulin cleavage site and a glucose-regulated expressible nucleic acid encoding a protease capable of cleaving the proinsuling cleavage site to produce insulin. The invention also provides an isolated population of cells which further express a hexosamine synthetic pathway enzyme. The invention additionally provides vectors containing an expressible nucleic acid encoding proinsulin containing a proinsulin cleavage site end a glucose-regulated expressible nucleic acid encoding a protease capable of cleaving the proinsulin cleavage site to produce …
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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 1, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 1, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 1, 2021.
- 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.