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Expired European patentEurope

High flexural strength carbon fiber reinforced silicon carboxide composite

EP 0691942 B1 · Applicant: AlliedSignal Inc.

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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 April 1, 1993 and granted October 8, 1997. A European patent lasts at most 20 years from filing, so its term ended April 1, 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 October 1, 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.
FiledApril 1, 1993
PublishedJanuary 17, 1996
GrantedOctober 8, 1997
Term endedApril 1, 2013
Application numberEP 93912107
Classification (CPC)C04B35/524 +2 more

Timeline

Timeline From EPO dates

1994199619982000200220042006200820102012Application filedApril 1, 1993PublishedJan 17, 1996Patent grantedOct 8, 1997Term endedApril 1, 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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