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Expired European patentEurope

Method of and apparatus for equalizing the density distribution in an artificial-wood panel

EP 0109456 B1 · Applicant: CARL SCHENCK AG

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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 20, 1982 and granted September 3, 1986. A European patent lasts at most 20 years from filing, so its term ended November 20, 2002.
  • 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 20, 2008.
  • 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 20, 1982
PublishedMay 30, 1984
GrantedSeptember 3, 1986
Term endedNovember 20, 2002
Application numberEP 82110741
Classification (CPC)B27N3/146

Timeline

Timeline From EPO dates

1983198519871989199119931995199719992001Application filedNov 20, 1982PublishedMay 30, 1984Patent grantedSep 3, 1986Term endedNov 20, 2002

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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