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Expired European patentEurope

Apparatus and process for crimping and crosslinking fibers

EP 0624666 B1 · Applicant: R.K. CARBON FIBERS, LTD.

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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 10, 1993 and granted January 21, 1998. A European patent lasts at most 20 years from filing, so its term ended May 10, 2013.
  • 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 10, 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.
FiledMay 10, 1993
PublishedNovember 17, 1994
GrantedJanuary 21, 1998
Term endedMay 10, 2013
Application numberEP 93850102
Classification (CPC)D02G1/12

Timeline

Timeline From EPO dates

1994199619982000200220042006200820102012Application filedMay 10, 1993PublishedNov 17, 1994Patent grantedJan 21, 1998Term endedMay 10, 2013

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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