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Expired European patentEurope

High energy fluid and its use in the feeding of a reaction zone with combustible material

EP 0122846 B1 · Applicant: CREUSOT-LOIRE

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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 4, 1984 and granted September 17, 1986. A European patent lasts at most 20 years from filing, so its term ended April 4, 2004.
  • 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 4, 2009.
  • 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 4, 1984
PublishedOctober 24, 1984
GrantedSeptember 17, 1986
Term endedApril 4, 2004
Application numberEP 84400666
Classification (CPC)C10L1/32 +1 more

Timeline

Timeline From EPO dates

1985198719891991199319951997199920012003Application filedApril 4, 1984PublishedOct 24, 1984Patent grantedSep 17, 1986Term endedApril 4, 2004

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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