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Expired European patentEurope

Device and process for optimizing the intensity of radiation directed onto sewage and waste water

EP 0705220 B1 · Applicant: JUNG, Darius

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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 April 10, 1994 and granted March 26, 1997. A European patent lasts at most 20 years from filing, so its term ended April 10, 2014.
  • 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 October 10, 2019.
  • 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.
FiledApril 10, 1994
PublishedApril 10, 1996
GrantedMarch 26, 1997
Term endedApril 10, 2014
Application numberEP 94914356
Classification (CPC)C02F1/72 +2 more

Timeline

Timeline From EPO dates

1995199719992001200320052007200920112013Application filedApril 10, 1994PublishedApril 10, 1996Patent grantedMarch 26, 1997Term endedApril 10, 2014

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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