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Expired European patentEurope

Method and apparatus for optimizing the reduction of the size of spangles on a galvanised steel sheet

EP 0166654 B1 · Applicant: UNION SIDERURGIQUE DU NORD ET DE L'EST DE LA FRANCE par abréviation "USINOR"

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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 June 14, 1985 and granted November 4, 1987. A European patent lasts at most 20 years from filing, so its term ended June 14, 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 December 14, 2010.
  • 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.
FiledJune 14, 1985
PublishedJanuary 2, 1986
GrantedNovember 4, 1987
Term endedJune 14, 2005
Application numberEP 85401193
Classification (CPC)C23C2/265

Timeline

Timeline From EPO dates

1986198819901992199419961998200020022004Application filedJune 14, 1985PublishedJan 2, 1986Patent grantedNov 4, 1987Term endedJune 14, 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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