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Expired European patentEurope

Carburized machine parts

EP 1757711 B1 · Applicant: Daido Steel Co.,Ltd.

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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 August 22, 2006 and granted March 27, 2013. A European patent lasts at most 20 years from filing, so its term ended August 22, 2026.
  • 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.
FiledAugust 22, 2006
PublishedFebruary 28, 2007
GrantedMarch 27, 2013
Term endedAugust 22, 2026
Application numberEP 06119293
Classification (CPC)C22C38/001 +2 more

Timeline

Timeline From EPO dates

2007200920112013201520172019202120232025Application filedAug 22, 2006PublishedFeb 28, 2007Patent grantedMarch 27, 2013Term endedAug 22, 2026

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

Everything on this page comes from the EPO record linked above. EPO data used under CC BY 4.0.