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Surface heat treatment of piston rings

EP 1024205 A2 · Applicant: DANA 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 January 28, 2000 and never granted as a European patent. Had it been granted, its 20-year term would have ended January 28, 2020.
  • 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 July 28, 2025.
  • 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.
FiledJanuary 28, 2000
PublishedAugust 2, 2000
GrantedNever granted
Term endedJanuary 28, 2020
Application numberEP 00300685
Classification (CPC)C21D9/40

Timeline

Timeline From EPO dates

2001200320052007200920112013201520172019Application filedJan 28, 2000PublishedAug 2, 2000Term endedJan 28, 2020

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.