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Expired European patentEurope

Apparatus and process for continuous flow isoelectric focusing

EP 0018375 B1 · Applicant: UNIVERSITY PATENTS, INC.

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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 April 16, 1979 and granted September 26, 1984. A European patent lasts at most 20 years from filing, so its term ended April 16, 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 October 16, 2004.
  • 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.
FiledApril 16, 1979
PublishedSeptember 26, 1984
GrantedSeptember 26, 1984
Term endedApril 16, 1999
Application numberEP 79900434
Classification (CPC)B01D57/02 +1 more

Timeline

Timeline From EPO dates

1980198219841986198819901992199419961998Application filedApril 16, 1979PublishedSep 26, 1984Patent grantedSep 26, 1984Term endedApril 16, 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

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