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Expired European patentEurope

Vapor deposited diamond synthesizing method on electrochemically treated substrate

EP 0445305 B1 · Applicant: SHOWA DENKO KABUSHIKI KAISHA

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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 September 20, 1990 and granted March 29, 1995. A European patent lasts at most 20 years from filing, so its term ended September 20, 2010.
  • 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 March 20, 2016.
  • 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.
FiledSeptember 20, 1990
PublishedSeptember 11, 1991
GrantedMarch 29, 1995
Term endedSeptember 20, 2010
Application numberEP 90913889
Classification (CPC)C23C16/0227 +2 more

Timeline

Timeline From EPO dates

1991199319951997199920012003200520072009Application filedSep 20, 1990PublishedSep 11, 1991Patent grantedMarch 29, 1995Term endedSep 20, 2010

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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