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Expired European patentEurope

Use of polyisocyanate addition products as mould lacquers and their use as mould release agents for mould lacquers in the production of moulded plastics with a lacquer coating

EP 0083733 B1 · Applicant: BAYER 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 December 3, 1982 and granted February 26, 1986. A European patent lasts at most 20 years from filing, so its term ended December 3, 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 June 3, 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.
FiledDecember 3, 1982
PublishedJuly 20, 1983
GrantedFebruary 26, 1986
Term endedDecember 3, 2002
Application numberEP 82111190
Classification (CPC)C08G18/10 +2 more

Timeline

Timeline From EPO dates

1983198519871989199119931995199719992001Application filedDec 3, 1982PublishedJuly 20, 1983Patent grantedFeb 26, 1986Term endedDec 3, 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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