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European application, no grantEurope

Method and apparatus for the permeation separation of a gas mixture

EP 0758263 A1 · Applicant: L'AIR LIQUIDE, SOCIETE ANONYME POUR L'ETUDE ET L'EXPLOITATION DES PROCEDES GEORGES CLAUDE

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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 February 29, 1996 and never granted as a European patent. Had it been granted, its 20-year term would have ended February 29, 2016.
  • 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 August 29, 2021.
  • 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.
FiledFebruary 29, 1996
PublishedFebruary 19, 1997
GrantedNever granted
Term endedFebruary 29, 2016
Application numberEP 96905891
Classification (CPC)B01D53/229 +2 more

Timeline

Timeline From EPO dates

1997199920012003200520072009201120132015Application filedFeb 29, 1996PublishedFeb 19, 1997Term endedFeb 29, 2016

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

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