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Expired European patentEurope

Process for the separation of constituents of gas/gas, liquid/liquid, or liquid/solid mixtures or solutions

EP 0009374 B1 · Applicant: ALBANY INTERNATIONAL CORP.

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Overview

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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 September 13, 1979 and granted May 23, 1984. A European patent lasts at most 20 years from filing, so its term ended September 13, 1999.
  • 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 March 13, 2005.
  • 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.
FiledSeptember 13, 1979
PublishedApril 2, 1980
GrantedMay 23, 1984
Term endedSeptember 13, 1999
Application numberEP 79301885
Classification (CPC)B01D53/22 +2 more

Timeline

Timeline From EPO dates

1980198219841986198819901992199419961998Application filedSep 13, 1979PublishedApril 2, 1980Patent grantedMay 23, 1984Term endedSep 13, 1999

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.