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Expired European patentEurope

Amplification of a voltage having wide variation and A-D converter comprising such an amplifier

EP 0777321 B1 · Applicant: Philips Electronics N.V.

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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 November 21, 1996 and granted October 10, 2001. A European patent lasts at most 20 years from filing, so its term ended November 21, 2016.
  • 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 May 21, 2022.
  • 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.
FiledNovember 21, 1996
PublishedJune 4, 1997
GrantedOctober 10, 2001
Term endedNovember 21, 2016
Application numberEP 96203266
Classification (CPC)H03F1/3211

Timeline

Timeline From EPO dates

1997199920012003200520072009201120132015Application filedNov 21, 1996PublishedJune 4, 1997Patent grantedOct 10, 2001Term endedNov 21, 2016

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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