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Expired European patentEurope

Block type heat exchanger for dust-laden flue gas

EP 1703244 B1 · Applicant: SGL CARBON AG

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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 February 23, 2006 and granted July 20, 2011. A European patent lasts at most 20 years from filing, so its term ended February 23, 2026.
  • Supplementary protection certificates extend only medicine and crop-protection patents, and it isn't classified as either.
  • 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.
FiledFebruary 23, 2006
PublishedSeptember 20, 2006
GrantedJuly 20, 2011
Term endedFebruary 23, 2026
Application numberEP 06003754
Classification (CPC)F28F19/00 +2 more

Timeline

Timeline From EPO dates

2007200920112013201520172019202120232025Application filedFeb 23, 2006PublishedSep 20, 2006Patent grantedJuly 20, 2011Term endedFeb 23, 2026

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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