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Expired European patentEurope

Friction stir welding method, and method for manufacturing car body

EP 1808259 B1 · Applicant: Hitachi, 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 July 25, 2001 and granted March 31, 2010. A European patent lasts at most 20 years from filing, so its term ended July 25, 2021.
  • 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.
FiledJuly 25, 2001
PublishedJuly 18, 2007
GrantedMarch 31, 2010
Term endedJuly 25, 2021
Application numberEP 07008267
Classification (CPC)B23K20/24 +2 more

Timeline

Timeline From EPO dates

2002200420062008201020122014201620182020Application filedJuly 25, 2001PublishedJuly 18, 2007Patent grantedMarch 31, 2010Term endedJuly 25, 2021

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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