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Expired European patentEurope

Panel for constructing building roofs

EP 0347564 B1 · Applicant: Unidek Bouwelementen b.v.

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 April 29, 1989 and granted May 13, 1992. A European patent lasts at most 20 years from filing, so its term ended April 29, 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 October 29, 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.
FiledApril 29, 1989
PublishedDecember 27, 1989
GrantedMay 13, 1992
Term endedApril 29, 2009
Application numberEP 89107866
Classification (CPC)E04D3/352 +2 more

Timeline

Timeline From EPO dates

1990199219941996199820002002200420062008Application filedApril 29, 1989PublishedDec 27, 1989Patent grantedMay 13, 1992Term endedApril 29, 2009

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