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Expired European patentEurope

Improved offset cancellation for differential amplifiers

EP 0768751 B1 · Applicant: ROCKWELL INTERNATIONAL 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 September 30, 1996 and granted January 16, 2002. A European patent lasts at most 20 years from filing, so its term ended September 30, 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 March 30, 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.
FiledSeptember 30, 1996
PublishedApril 16, 1997
GrantedJanuary 16, 2002
Term endedSeptember 30, 2016
Application numberEP 96115661
Classification (CPC)H03F1/303 +1 more

Timeline

Timeline From EPO dates

1997199920012003200520072009201120132015Application filedSep 30, 1996PublishedApril 16, 1997Patent grantedJan 16, 2002Term endedSep 30, 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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