Patent Yard Sign in
Expired European patentEurope

High-strength steel parts and method of making

EP 0554257 B1 · Applicant: CONSOLIDATED METAL PRODUCTS, INC.

EPO PDF

Overview

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

Read the whole patent

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.

Google PatentsEPO PDF

Why it's free to use

  • Filed July 30, 1991 and granted September 27, 1995. A European patent lasts at most 20 years from filing, so its term ended July 30, 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 January 30, 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.
FiledJuly 30, 1991
PublishedAugust 11, 1993
GrantedSeptember 27, 1995
Term endedJuly 30, 2011
Application numberEP 91913691
Classification (CPC)C21D8/00 +2 more

Timeline

Timeline From EPO dates

1992199419961998200020022004200620082010Application filedJuly 30, 1991PublishedAug 11, 1993Patent grantedSep 27, 1995Term endedJuly 30, 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.