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Expired European patentEurope

Apparatus for measuring the flow pressure characteristics of a gas crossing a sample of a product with two faces

EP 0187089 B1 · Applicant: SOCIETE NATIONALE D'EXPLOITATION INDUSTRIELLE DES TABACS ET ALLUMETTES

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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 11, 1985 and granted November 23, 1989. A European patent lasts at most 20 years from filing, so its term ended December 11, 2005.
  • 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 11, 2011.
  • 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 11, 1985
PublishedJuly 9, 1986
GrantedNovember 23, 1989
Term endedDecember 11, 2005
Application numberEP 85402464
Classification (CPC)G01N15/0826

Timeline

Timeline From EPO dates

1986198819901992199419961998200020022004Application filedDec 11, 1985PublishedJuly 9, 1986Patent grantedNov 23, 1989Term endedDec 11, 2005

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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