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Expired European patentEurope

Process and device for processing and/or dewatering sludge liquor from waste water tanks, in particular small sewerage purification plants

EP 0693041 B1 · Applicant: Simon Moos Maskinfabrik A/S

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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 16, 1993 and granted November 5, 1997. A European patent lasts at most 20 years from filing, so its term ended September 16, 2013.
  • 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 16, 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.
FiledSeptember 16, 1993
PublishedJanuary 24, 1996
GrantedNovember 5, 1997
Term endedSeptember 16, 2013
Application numberEP 93920736
Classification (CPC)C02F11/147

Timeline

Timeline From EPO dates

1994199619982000200220042006200820102012Application filedSep 16, 1993PublishedJan 24, 1996Patent grantedNov 5, 1997Term endedSep 16, 2013

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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