Expired European patentEurope
Method of making a composite material with refractory fibre reinforcement and ceramic matrix, and structure obtained thereby
EP 0172082 B1 · Applicant: SOCIETE EUROPEENNE DE PROPULSION (S.E.P.) Société Anonyme dite:
Overview
The published document from the EPO: abstract, claims, description and drawings. Open it full size
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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.
Why it's free to use
- Filed July 18, 1985 and granted December 21, 1988. A European patent lasts at most 20 years from filing, so its term ended July 18, 2005.
- 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 18, 2011.
- 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 18, 1985
PublishedFebruary 19, 1986
GrantedDecember 21, 1988
Term endedJuly 18, 2005
Application numberEP 85401477
Classification (CPC)C04B35/624 +2 more
Timeline
Timeline From EPO dates
Sources & verification
Official EPO records
Everything on this page comes from the EPO record linked above. EPO data used under CC BY 4.0.