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Expired European patentEurope

Apparatus for producing ferrous or non-ferrous metals from self-fluxing or not, self-reducing agglomerates or ores

EP 0277947 B1 · Applicant: INDUSTRIA DE FUNDICAO TUPY LTDA.

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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 October 28, 1986 and granted March 20, 1991. A European patent lasts at most 20 years from filing, so its term ended October 28, 2006.
  • 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 April 28, 2012.
  • 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.
FiledOctober 28, 1986
PublishedAugust 17, 1988
GrantedMarch 20, 1991
Term endedOctober 28, 2006
Application numberEP 86906250
Classification (CPC)C21B11/02 +2 more

Timeline

Timeline From EPO dates

1987198919911993199519971999200120032005Application filedOct 28, 1986PublishedAug 17, 1988Patent grantedMarch 20, 1991Term endedOct 28, 2006

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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