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Expired European patentEurope

Steel plate and welded steel tube exhibiting low yield ratio, high strength and high toughness and method for production thereof

EP 1662014 B1 · Applicant: JFE Steel Corporation

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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 10, 2004 and granted March 7, 2018. A European patent lasts at most 20 years from filing, so its term ended June 10, 2024.
  • Supplementary protection certificates extend only medicine and crop-protection patents, and it isn't classified as either.
  • 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 10, 2004
PublishedMay 31, 2006
GrantedMarch 7, 2018
Term endedJune 10, 2024
Application numberEP 04736598
Classification (CPC)C22C38/12 +2 more

Timeline

Timeline From EPO dates

2005200720092011201320152017201920212023Application filedJune 10, 2004PublishedMay 31, 2006Patent grantedMarch 7, 2018Term endedJune 10, 2024

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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