Expired European patentEurope
N(1) substituted pyrazino 2,3-c -1,2,6-thiadiazine 2,2-dioxides and their use as pharmaceuticals
EP 0580916 B1 · Applicant: CONSEJO SUPERIOR DE INVESTIGACIONES CIENTIFICAS
Overview
The published document from the EPO: abstract, claims, description and drawings. Open it full size
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Listed from its EPO record in Patent Yard's archive of European patents past their term. Its claims, description and drawings are in the EPO PDF and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Filed October 16, 1992 and granted March 5, 1997. A European patent lasts at most 20 years from filing, so its term ended October 16, 2012.
- A supplementary protection certificate, which can extend a medicine or crop-protection patent, adds at most five and a half years, so even that would have ended by April 16, 2018.
- We check European rights only. A US or other national patent in its family could still be in force: check its family on Espacenet or Google Patents.
FiledOctober 16, 1992
PublishedFebruary 2, 1994
GrantedMarch 5, 1997
Term endedOctober 16, 2012
Application numberEP 92500133
Classification (CPC)A61P7/10 +2 more
Timeline
Timeline From EPO dates
Sources & verification
Official EPO records
Everything on this page comes from the EPO record linked above. EPO data used under CC BY 4.0.