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Expired European patentEurope

Flanged joint and water heater

EP 0288757 B1 · Applicant: DOMOTEC AG

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Overview

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

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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.

Why it's free to use

  • Filed March 26, 1988 and granted January 2, 1992. A European patent lasts at most 20 years from filing, so its term ended March 26, 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 September 26, 2013.
  • 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.
FiledMarch 26, 1988
PublishedNovember 2, 1988
GrantedJanuary 2, 1992
Term endedMarch 26, 2008
Application numberEP 88104909
Classification (CPC)F24H9/133

Timeline

Timeline From EPO dates

1989199119931995199719992001200320052007Application filedMarch 26, 1988PublishedNov 2, 1988Patent grantedJan 2, 1992Term endedMarch 26, 2008

Sources & verification