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Expired European patentEurope

Device for unfolding the inner and outer pontoons of a W-shaped unit consisting of two inner and outer pontoons

EP 0384967 B1 · Applicant: MAN Gutehoffnungshütte Aktiengesellschaft

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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 November 15, 1989 and granted July 15, 1992. A European patent lasts at most 20 years from filing, so its term ended November 15, 2009.
  • 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 May 15, 2015.
  • 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.
FiledNovember 15, 1989
PublishedSeptember 5, 1990
GrantedJuly 15, 1992
Term endedNovember 15, 2009
Application numberEP 89121126
Classification (CPC)E01D15/20

Timeline

Timeline From EPO dates

1990199219941996199820002002200420062008Application filedNov 15, 1989PublishedSep 5, 1990Patent grantedJuly 15, 1992Term endedNov 15, 2009

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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