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Expired European patentEurope

Filter, repetitive control system and learning control system both provided with such filter

EP 0774176 B1 · Applicant: Koninklijke Philips Electronics N.V.

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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 25, 1995 and granted December 19, 2001. A European patent lasts at most 20 years from filing, so its term ended October 25, 2015.
  • 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 25, 2021.
  • 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 25, 1995
PublishedMay 21, 1997
GrantedDecember 19, 2001
Term endedOctober 25, 2015
Application numberEP 95933592
Classification (CPC)H03H11/04

Timeline

Timeline From EPO dates

1996199820002002200420062008201020122014Application filedOct 25, 1995PublishedMay 21, 1997Patent grantedDec 19, 2001Term endedOct 25, 2015

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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