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Expired European patentEurope

Synchronizer ring made of copper alloy exhibiting excellent resistance to plastic flow under high exothermic circumstance

EP 1690952 B1 · Applicant: MITSUBISHI MATERIALS CORPORATION

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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 November 26, 2004 and granted August 23, 2017. A European patent lasts at most 20 years from filing, so its term ended November 26, 2024.
  • Supplementary protection certificates extend only medicine and crop-protection patents, and it isn't classified as either.
  • 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.
FiledNovember 26, 2004
PublishedAugust 16, 2006
GrantedAugust 23, 2017
Term endedNovember 26, 2024
Application numberEP 04819783
Classification (CPC)C22C9/04 +1 more

Timeline

Timeline From EPO dates

2005200720092011201320152017201920212023Application filedNov 26, 2004PublishedAug 16, 2006Patent grantedAug 23, 2017Term endedNov 26, 2024

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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