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Expired European patentEurope

Friction welded product for rock drilling and method for manufacturing the product

EP 0886554 B1 · Applicant: Sandvik Aktiebolag (publ)

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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 January 20, 1997 and granted April 10, 2002. A European patent lasts at most 20 years from filing, so its term ended January 20, 2017.
  • 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 July 20, 2022.
  • 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.
FiledJanuary 20, 1997
PublishedApril 10, 2002
GrantedApril 10, 2002
Term endedJanuary 20, 2017
Application numberEP 97901871
Classification (CPC)C22C38/44 +2 more

Timeline

Timeline From EPO dates

1998200020022004200620082010201220142016Application filedJan 20, 1997PublishedApril 10, 2002Patent grantedApril 10, 2002Term endedJan 20, 2017

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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