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Expired European patentEurope

High speed ge channel heterostructures for field effect devices

EP 1169737 B1 · Applicant: International Business Machines 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 11, 2000 and granted May 7, 2008. A European patent lasts at most 20 years from filing, so its term ended March 11, 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 11, 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 11, 2000
PublishedJanuary 9, 2002
GrantedMay 7, 2008
Term endedMarch 11, 2020
Application numberEP 00914903
Classification (CPC)H10D30/473

Timeline

Timeline From EPO dates

2001200320052007200920112013201520172019Application filedMarch 11, 2000PublishedJan 9, 2002Patent grantedMay 7, 2008Term endedMarch 11, 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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