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Expired European patentEurope

Thermoplastic polyamide based on dimeric fat acids, and its preparation

EP 0061118 B1 · Applicant: Henkel Kommanditgesellschaft auf Aktien

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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 March 15, 1982 and granted August 13, 1986. A European patent lasts at most 20 years from filing, so its term ended March 15, 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 September 15, 2007.
  • 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.
FiledMarch 15, 1982
PublishedSeptember 29, 1982
GrantedAugust 13, 1986
Term endedMarch 15, 2002
Application numberEP 82102090
Classification (CPC)C08G69/34

Timeline

Timeline From EPO dates

1983198519871989199119931995199719992001Application filedMarch 15, 1982PublishedSep 29, 1982Patent grantedAug 13, 1986Term endedMarch 15, 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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