Novel polyene antibiotics, 3874 h1 to h6, processes for their preparation and use
CA 2213285 A1 · Owner: Vertesy, Lssszlo · Inventors: Stahl, Wilhelm; Vertesy, Lssszlo; Markus, Astrid
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Novel polyene antibiotics, 3874 H1 to H6 processes for their preparation, and use Compounds of the formulae, 3874 H1, molecular formula C58H86N2O18 MW 1099.3, (see fig. I), 3874 H2, molecular formula: C59H88N2O18 MW 1113.3, (see fig. II), 3874 H3, molecular formula: C57H87NO18 MW 1074.3, (see fig. III), 3874 H4, molecular formula: C58H84N2O18 MW 1097.3, 3874 H5, molecular formula: C59H86N2O18 MW 1111.3, 3874 H6, molecular formula: C57H85NO18 MW 1072.3, are suitable for treating fungal diseases and for treating diseases associated with an increased steroid concentration.
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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 August 18, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 18, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 18, 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.