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Expired European patentEurope

High precision mask holder for measuring thickness

EP 1092946 B1 · Applicant: Leica Microsystems Wetzlar GmbH

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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 October 9, 2000 and granted December 8, 2004. A European patent lasts at most 20 years from filing, so its term ended October 9, 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 April 9, 2026.
  • 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.
FiledOctober 9, 2000
PublishedApril 18, 2001
GrantedDecember 8, 2004
Term endedOctober 9, 2020
Application numberEP 00121944
Classification (CPC)H10P72/1902 +2 more

Timeline

Timeline From EPO dates

2001200320052007200920112013201520172019Application filedOct 9, 2000PublishedApril 18, 2001Patent grantedDec 8, 2004Term endedOct 9, 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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