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Expired European patentEurope

HEAT-RESISTANT HIGH-Al AUSTENITIC STEEL HAVING EXCELLENT HOT WORKING PROPERTIES

EP 0392011 B1 · Applicant: NIPPON STEEL CORPORATION

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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 October 22, 1988 and granted June 28, 1995. A European patent lasts at most 20 years from filing, so its term ended October 22, 2008.
  • 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 22, 2014.
  • 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 22, 1988
PublishedOctober 17, 1990
GrantedJune 28, 1995
Term endedOctober 22, 2008
Application numberEP 88909133
Classification (CPC)C22C30/00 +1 more

Timeline

Timeline From EPO dates

1989199119931995199719992001200320052007Application filedOct 22, 1988PublishedOct 17, 1990Patent grantedJune 28, 1995Term endedOct 22, 2008

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.