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Expired European patentEurope

Amorphous magnesium alloy and method for producing the same

EP 0503880 B1 · Applicant: YKK 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 March 10, 1992 and granted October 1, 1997. A European patent lasts at most 20 years from filing, so its term ended March 10, 2012.
  • 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 10, 2017.
  • 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 10, 1992
PublishedSeptember 16, 1992
GrantedOctober 1, 1997
Term endedMarch 10, 2012
Application numberEP 92302005
Classification (CPC)C22C45/005

Timeline

Timeline From EPO dates

1993199519971999200120032005200720092011Application filedMarch 10, 1992PublishedSep 16, 1992Patent grantedOct 1, 1997Term endedMarch 10, 2012

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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