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Expired European patentEurope

Method for recovering platinum group metals, deposited as thin films ou ceramic substrates, from used catalysts

EP 0482980 B1 · Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUE

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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 October 14, 1991 and granted February 23, 1994. A European patent lasts at most 20 years from filing, so its term ended October 14, 2011.
  • 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 April 14, 2017.
  • 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.
FiledOctober 14, 1991
PublishedApril 29, 1992
GrantedFebruary 23, 1994
Term endedOctober 14, 2011
Application numberEP 91402740
Classification (CPC)C22B7/009 +1 more

Timeline

Timeline From EPO dates

1992199419961998200020022004200620082010Application filedOct 14, 1991PublishedApril 29, 1992Patent grantedFeb 23, 1994Term endedOct 14, 2011

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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