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Expired European patentEurope

Process for drying sewage sludge or sludges of similar consistency

EP 0880477 B1 · Applicant: Gebrüder Lödige Maschinenbaugesellschaft mbH

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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 January 16, 1997 and granted April 17, 2002. A European patent lasts at most 20 years from filing, so its term ended January 16, 2017.
  • 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 July 16, 2022.
  • 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.
FiledJanuary 16, 1997
PublishedDecember 2, 1998
GrantedApril 17, 2002
Term endedJanuary 16, 2017
Application numberEP 97914056
Classification (CPC)C02F11/13 +2 more

Timeline

Timeline From EPO dates

1998200020022004200620082010201220142016Application filedJan 16, 1997PublishedDec 2, 1998Patent grantedApril 17, 2002Term endedJan 16, 2017

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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