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Expired European patentEurope

Mass transfer column with transfer trays

EP 1704906 B1 · Applicant: Linde Aktiengesellschaft

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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 April 19, 2005 and granted June 8, 2011. A European patent lasts at most 20 years from filing, so its term ended April 19, 2025.
  • 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.
FiledApril 19, 2005
PublishedSeptember 27, 2006
GrantedJune 8, 2011
Term endedApril 19, 2025
Application numberEP 05008531
Classification (CPC)B01D3/20

Timeline

Timeline From EPO dates

2006200820102012201420162018202020222024Application filedApril 19, 2005PublishedSep 27, 2006Patent grantedJune 8, 2011Term endedApril 19, 2025

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