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Expired European patentEurope

Conversion of solid dicyclopentadiene to a liquid monomer for use in reaction injection molding

EP 0271007 B1 · Applicant: HERCULES INCORPORATED

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Overview

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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, 1987 and granted March 16, 1994. A European patent lasts at most 20 years from filing, so its term ended December 3, 2007.
  • 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, 2013.
  • 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, 1987
PublishedJune 15, 1988
GrantedMarch 16, 1994
Term endedDecember 3, 2007
Application numberEP 87117915
Classification (CPC)C08G61/04 +2 more

Timeline

Timeline From EPO dates

1988199019921994199619982000200220042006Application filedDec 3, 1987PublishedJune 15, 1988Patent grantedMarch 16, 1994Term endedDec 3, 2007

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

Everything on this page comes from the EPO record linked above. EPO data used under CC BY 4.0.