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Expired European patentEurope

Self-carrying vault roof

EP 0167549 B1 · Applicant: EKA-TECNICA SA

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.

Why it's free to use

  • Filed January 11, 1985 and granted March 15, 1989. A European patent lasts at most 20 years from filing, so its term ended January 11, 2005.
  • 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 11, 2010.
  • 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 11, 1985
PublishedJanuary 15, 1986
GrantedMarch 15, 1989
Term endedJanuary 11, 2005
Application numberEP 85900032
Classification (CPC)E04B7/08 +1 more

Timeline

Timeline From EPO dates

1986198819901992199419961998200020022004Application filedJan 11, 1985PublishedJan 15, 1986Patent grantedMarch 15, 1989Term endedJan 11, 2005

Sources & verification