Recombinant dna expression vectors and dna compounds that encode deacetylcephalosporin c synthase activity
CA 2045951 A1 · Owner: Kovacevic, Steven · Inventors: Miller, James R.; Kovacevic, Steven
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
X-8107-(C), Abstract, The present invention provides DNA compounds that encode hydroxylase activity of Streptomyces clavuligerus. The compounds can be used to construct recombinant DNA expression vectors for a wide variety of host cells, including E. coli, Penicillium Strepto-, myces, Aspergillus, and Cephalosporium.
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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 28, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 28, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 28, 2013.
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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.