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Expired European patentEurope

Cold- and hot-water piping made of pitting-resistant copper alloy

EP 0630981 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 December 21, 1993 and granted June 24, 1998. A European patent lasts at most 20 years from filing, so its term ended December 21, 2013.
  • 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 21, 2019.
  • 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 21, 1993
PublishedDecember 28, 1994
GrantedJune 24, 1998
Term endedDecember 21, 2013
Application numberEP 94903030
Classification (CPC)C22C9/00

Timeline

Timeline From EPO dates

1994199619982000200220042006200820102012Application filedDec 21, 1993PublishedDec 28, 1994Patent grantedJune 24, 1998Term endedDec 21, 2013

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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