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Expired European patentEurope

Amplifying circuit for offset compensation, in particular for digital modulation apparatuses

EP 1154565 B1 · Applicant: Infineon Technologies AG

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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 April 11, 2001 and granted November 18, 2009. A European patent lasts at most 20 years from filing, so its term ended April 11, 2021.
  • 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 October 11, 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.
FiledApril 11, 2001
PublishedNovember 14, 2001
GrantedNovember 18, 2009
Term endedApril 11, 2021
Application numberEP 01109054
Classification (CPC)H03F3/45623 +2 more

Timeline

Timeline From EPO dates

2002200420062008201020122014201620182020Application filedApril 11, 2001PublishedNov 14, 2001Patent grantedNov 18, 2009Term endedApril 11, 2021

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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