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Expired European patentEurope

Wafer polishing apparatus and method for manufacturing wafer

EP 1495838 B1 · Applicant: Ebara 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 March 15, 2000 and granted October 17, 2007. A European patent lasts at most 20 years from filing, so its term ended March 15, 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 September 15, 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.
FiledMarch 15, 2000
PublishedJanuary 12, 2005
GrantedOctober 17, 2007
Term endedMarch 15, 2020
Application numberEP 04014353
Classification (CPC)B24B53/017 +1 more

Timeline

Timeline From EPO dates

2001200320052007200920112013201520172019Application filedMarch 15, 2000PublishedJan 12, 2005Patent grantedOct 17, 2007Term endedMarch 15, 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

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