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Expired European patentEurope

Structure of a surface-effect ship with side keels

EP 0242485 B1 · Applicant: ETAT-FRANCAIS représenté par le DELEGUE GENERAL POUR L'ARMEMENT (DPAG)

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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 April 16, 1986 and granted March 15, 1989. A European patent lasts at most 20 years from filing, so its term ended April 16, 2006.
  • 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 October 16, 2011.
  • 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.
FiledApril 16, 1986
PublishedOctober 28, 1987
GrantedMarch 15, 1989
Term endedApril 16, 2006
Application numberEP 86400816
Classification (CPC)B63B3/28 +1 more

Timeline

Timeline From EPO dates

1987198919911993199519971999200120032005Application filedApril 16, 1986PublishedOct 28, 1987Patent grantedMarch 15, 1989Term endedApril 16, 2006

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.