Expired European patentEurope
Iron aluminide alloys with improved properties for high temperature applications
EP 0455752 B1 · Applicant: MARTIN MARIETTA ENERGY SYSTEMS, INC.
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 March 7, 1990 and granted October 12, 1994. A European patent lasts at most 20 years from filing, so its term ended March 7, 2010.
- 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 September 7, 2015.
- 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.
FiledMarch 7, 1990
PublishedNovember 13, 1991
GrantedOctober 12, 1994
Term endedMarch 7, 2010
Application numberEP 90905287
Classification (CPC)C22C38/06
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.