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Expired European patentEurope

Endothermic blowing agents compositions and applications

EP 0482007 B1 · Applicant: J.M. HUBER CORPORATION

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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 May 15, 1990 and granted November 15, 1995. A European patent lasts at most 20 years from filing, so its term ended May 15, 2010.
  • 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 November 15, 2015.
  • 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.
FiledMay 15, 1990
PublishedApril 29, 1992
GrantedNovember 15, 1995
Term endedMay 15, 2010
Application numberEP 90908351
Classification (CPC)C08J9/0023 +1 more

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

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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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