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Expired European patentEurope

A compact precision extrusion system and method

EP 0492425 B1 · Applicant: Bridgestone Corporation

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Overview

The published document from the EPO: abstract, claims, description and drawings. Open it full size

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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 December 19, 1991 and granted February 26, 1997. A European patent lasts at most 20 years from filing, so its term ended December 19, 2011.
  • 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 June 19, 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.
FiledDecember 19, 1991
PublishedJuly 1, 1992
GrantedFebruary 26, 1997
Term endedDecember 19, 2011
Application numberEP 91121751
Classification (CPC)B29C48/92 +2 more

Timeline

Timeline From EPO dates

1992199419961998200020022004200620082010Application filedDec 19, 1991PublishedJuly 1, 1992Patent grantedFeb 26, 1997Term endedDec 19, 2011

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

Everything on this page comes from the EPO record linked above. EPO data used under CC BY 4.0.