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Expired European patentEurope

Method and apparatus for contolling a progressive flow water treatment system

EP 0555426 B1 · Applicant: BRUNER 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 June 19, 1992 and granted August 30, 1995. A European patent lasts at most 20 years from filing, so its term ended June 19, 2012.
  • 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 December 19, 2017.
  • 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.
FiledJune 19, 1992
PublishedAugust 18, 1993
GrantedAugust 30, 1995
Term endedJune 19, 2012
Application numberEP 92914792
Classification (CPC)C02F1/42 +1 more

Timeline

Timeline From EPO dates

1993199519971999200120032005200720092011Application filedJune 19, 1992PublishedAug 18, 1993Patent grantedAug 30, 1995Term endedJune 19, 2012

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

Everything on this page comes from the EPO record linked above. EPO data used under CC BY 4.0.