Enzymatically-active recombinant human .beta.-tryptase and method of making same
CA 2326700 A1 · Owner: Niles, Andrew L. · Inventors: Haak-Frendscho, Mary; Maffitt, Mark A.; Niles, Andrew L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Disclosed is a method of expressing enzymatically-active recombinant human , .beta.-tryptase in a yeast host cell expression constructs which drive the production of enzymatically-active tryptase in transformed yeast and , genetically-engineered yeast containing the expression constructs and which express enzymatically-active human .beta.-tryptase. Uses for the tryptase so produced are also disclosed.
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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 October 29, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 29, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 29, 2020.
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Timeline
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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.