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Expired European patentEurope

Fabrication of metal matrix composites by vacuum die casting

EP 0538457 B1 · Applicant: ALUMINUM COMPANY OF AMERICA

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Overview

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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 April 8, 1992 and granted October 4, 2001. A European patent lasts at most 20 years from filing, so its term ended April 8, 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 October 8, 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.
FiledApril 8, 1992
PublishedApril 28, 1993
GrantedOctober 4, 2001
Term endedApril 8, 2012
Application numberEP 92912368
Classification (CPC)C04B41/009 +2 more

Timeline

Timeline From EPO dates

1993199519971999200120032005200720092011Application filedApril 8, 1992PublishedApril 28, 1993Patent grantedOct 4, 2001Term endedApril 8, 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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