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Expired European patentEurope

Method of manufacturing hot-worked elongated products, in particular bar or pipe, from high-alloy or hypereutectoid steel

EP 0820529 B1 · Applicant: MANNESMANN Aktiengesellschaft

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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 March 12, 1996 and granted August 2, 2000. A European patent lasts at most 20 years from filing, so its term ended March 12, 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 September 12, 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.
FiledMarch 12, 1996
PublishedJanuary 28, 1998
GrantedAugust 2, 2000
Term endedMarch 12, 2016
Application numberEP 96907260
Classification (CPC)C21D8/06 +2 more

Timeline

Timeline From EPO dates

1997199920012003200520072009201120132015Application filedMarch 12, 1996PublishedJan 28, 1998Patent grantedAug 2, 2000Term endedMarch 12, 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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