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Expired European patentEurope

Centrifuge with automatic balancing rotor

EP 1667799 B1 · Applicant: Hanlab Corporation

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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 November 19, 2004 and granted September 10, 2008. A European patent lasts at most 20 years from filing, so its term ended November 19, 2024.
  • 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.
FiledNovember 19, 2004
PublishedJune 14, 2006
GrantedSeptember 10, 2008
Term endedNovember 19, 2024
Application numberEP 04821366
Classification (CPC)B04B9/146 +1 more

Timeline

Timeline From EPO dates

2005200720092011201320152017201920212023Application filedNov 19, 2004PublishedJune 14, 2006Patent grantedSep 10, 2008Term endedNov 19, 2024

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