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Expired European patentEurope

Air and exhaust gas duct suitable for the active cleaning of the outer surface of a roof

EP 1275902 B1 · Applicant: Wolf GmbH

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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 July 15, 2002 and granted October 17, 2007. A European patent lasts at most 20 years from filing, so its term ended July 15, 2022.
  • 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.
FiledJuly 15, 2002
PublishedJanuary 15, 2003
GrantedOctober 17, 2007
Term endedJuly 15, 2022
Application numberEP 02015798
Classification (CPC)F23J13/025 +1 more

Timeline

Timeline From EPO dates

2003200520072009201120132015201720192021Application filedJuly 15, 2002PublishedJan 15, 2003Patent grantedOct 17, 2007Term endedJuly 15, 2022

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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