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Expired European patentEurope

Catalysts for low temperature cure of blocked isocyanates and isothiocyanates

EP 0665854 B1 · Applicant: ELF ATOCHEM NORTH AMERICA, INC.

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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 July 26, 1994 and granted March 10, 1999. A European patent lasts at most 20 years from filing, so its term ended July 26, 2014.
  • 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 January 26, 2020.
  • 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.
FiledJuly 26, 1994
PublishedAugust 9, 1995
GrantedMarch 10, 1999
Term endedJuly 26, 2014
Application numberEP 94925683
Classification (CPC)C08G18/80 +2 more

Timeline

Timeline From EPO dates

1995199719992001200320052007200920112013Application filedJuly 26, 1994PublishedAug 9, 1995Patent grantedMarch 10, 1999Term endedJuly 26, 2014

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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