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Expired European patentEurope

Device for removing free hydrogen from a gas mixture containing hydrogen and oxygen

EP 0670575 B1 · Applicant: GESELLSCHAFT FÜR ANLAGEN- UND REAKTORSICHERHEIT ( GRS) mbH

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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.

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Why it's free to use

  • Filed December 13, 1993 and granted September 27, 1995. A European patent lasts at most 20 years from filing, so its term ended December 13, 2013.
  • 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 June 13, 2019.
  • 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.
FiledDecember 13, 1993
PublishedSeptember 6, 1995
GrantedSeptember 27, 1995
Term endedDecember 13, 2013
Application numberEP 93120086
Classification (CPC)C01B5/00 +2 more

Timeline

Timeline From EPO dates

1994199619982000200220042006200820102012Application filedDec 13, 1993PublishedSep 6, 1995Patent grantedSep 27, 1995Term endedDec 13, 2013

Sources & verification

Official EPO records

Full published documentClaims, description and drawings as a PDF.EPOEuropean Patent RegisterProcedure, status, file inspection and legal events.EPOLinked open EP data recordThe bibliographic record this page is built from.EPO

Cross-check elsewhere

Google PatentsFull text, worldwide family, citing patents and legal events.patents.google.comEspacenetNational family members and their legal status.European Patent Office

Everything on this page comes from the EPO record linked above. EPO data used under CC BY 4.0.