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Expired European patentEurope

Multi-variable regulator having at least four mechanical ports and system provided with such a regulator

EP 0450195 B1 · Applicant: Koppens Automatic Fabrieken B.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 March 30, 1990 and granted January 4, 1995. A European patent lasts at most 20 years from filing, so its term ended March 30, 2010.
  • 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 30, 2015.
  • 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 30, 1990
PublishedOctober 9, 1991
GrantedJanuary 4, 1995
Term endedMarch 30, 2010
Application numberEP 90200767
Classification (CPC)G05D7/01 +2 more

Timeline

Timeline From EPO dates

1991199319951997199920012003200520072009Application filedMarch 30, 1990PublishedOct 9, 1991Patent grantedJan 4, 1995Term endedMarch 30, 2010

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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