Patent Yard Sign in
Expired European patentEurope

Method and apparatus for purifying water

EP 0880469 B1 · Applicant: United States Filter Corporation

EPO PDF

Overview

The published document from the EPO: abstract, claims, description and drawings. Open it full size

Read the whole patent

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.

Google PatentsEPO PDF

Why it's free to use

  • Filed January 23, 1997 and granted March 22, 2000. A European patent lasts at most 20 years from filing, so its term ended January 23, 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 23, 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 23, 1997
PublishedDecember 2, 1998
GrantedMarch 22, 2000
Term endedJanuary 23, 2017
Application numberEP 97904189
Classification (CPC)C02F1/42 +2 more

Timeline

Timeline From EPO dates

1998200020022004200620082010201220142016Application filedJan 23, 1997PublishedDec 2, 1998Patent grantedMarch 22, 2000Term endedJan 23, 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

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