Lipopeptide deacylase
CA 2043762 C · Owner: Kreuzman, Adam J. · Inventors: Yeh, Wu-Kuang; Kreuzman, Adam J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Echinocandin B deacylase, a cell-associated enzyme from Actinoplanes utahensis, is purified to near homogeneity in a process comprising hydrophobic interaction chromatography, cation-exchange chromatography and gel filtrations. The enzyme is a heterodimer containing 18-KD and 63-KD subunits and is a simple enzyme unaffected in activity by co-factors metal chelators, or sulfhydryl reagents. The enzyme catalyzes the deacylation of the lipid aryl portion of lipid cyclicpeptide metabolites such as ECB and aculeacin.
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 June 3, 1991 and granted May 29, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 3, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 3, 2013.
- 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.