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Expired European patentEurope

Dispersion for the chemical-mechanical polishing of metal surfaces containing metal oxide particles and a cationic polymer

EP 1732999 B1 · Applicant: Degussa 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.

Why it's free to use

  • Filed March 16, 2005 and granted July 11, 2007. A European patent lasts at most 20 years from filing, so its term ended March 16, 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.
FiledMarch 16, 2005
PublishedDecember 20, 2006
GrantedJuly 11, 2007
Term endedMarch 16, 2025
Application numberEP 05716106
Classification (CPC)C09G1/02

Timeline

Timeline From EPO dates

2006200820102012201420162018202020222024Application filedMarch 16, 2005PublishedDec 20, 2006Patent grantedJuly 11, 2007Term endedMarch 16, 2025

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