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Expired European patentEurope

Fiber-spinnable solutions of silkworm fibroin

EP 0624207 B1 · Applicant: E.I. DU PONT DE NEMOURS AND COMPANY

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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 30, 1992 and granted July 26, 1995. A European patent lasts at most 20 years from filing, so its term ended December 30, 2012.
  • 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 30, 2018.
  • 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 30, 1992
PublishedNovember 17, 1994
GrantedJuly 26, 1995
Term endedDecember 30, 2012
Application numberEP 93902831
Classification (CPC)D01F4/02

Timeline

Timeline From EPO dates

1993199519971999200120032005200720092011Application filedDec 30, 1992PublishedNov 17, 1994Patent grantedJuly 26, 1995Term endedDec 30, 2012

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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