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Expired European patentEurope

Method for the production of metal complexes

EP 1604411 B1 · Applicant: CDT Oxford Limited

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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 March 16, 2004 and granted September 29, 2010. A European patent lasts at most 20 years from filing, so its term ended March 16, 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.
FiledMarch 16, 2004
PublishedDecember 14, 2005
GrantedSeptember 29, 2010
Term endedMarch 16, 2024
Application numberEP 04720906
Classification (CPC)C09K11/06 +1 more

Timeline

Timeline From EPO dates

2005200720092011201320152017201920212023Application filedMarch 16, 2004PublishedDec 14, 2005Patent grantedSep 29, 2010Term endedMarch 16, 2024

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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