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Expired European patentEurope

Apparatus for prevention of the occurence or proliferation of microorganisms in water for industrial use

EP 0338056 B1 · Applicant: Vaillant Ltd.

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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 October 24, 1988 and granted January 26, 1994. A European patent lasts at most 20 years from filing, so its term ended October 24, 2008.
  • 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 April 24, 2014.
  • 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.
FiledOctober 24, 1988
PublishedOctober 25, 1989
GrantedJanuary 26, 1994
Term endedOctober 24, 2008
Application numberEP 88909284
Classification (CPC)F24H1/50 +2 more

Timeline

Timeline From EPO dates

1989199119931995199719992001200320052007Application filedOct 24, 1988PublishedOct 25, 1989Patent grantedJan 26, 1994Term endedOct 24, 2008

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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