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Expired European patentEurope

Leaching process in the presence of hydrochloric acid for the recovery of a value metal from an ore

EP 1809778 B1 · Applicant: Anglo Operations 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 October 21, 2005 and granted July 8, 2009. A European patent lasts at most 20 years from filing, so its term ended October 21, 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.
FiledOctober 21, 2005
PublishedJuly 25, 2007
GrantedJuly 8, 2009
Term endedOctober 21, 2025
Application numberEP 05797276
Classification (CPC)C22B19/22 +2 more

Timeline

Timeline From EPO dates

2006200820102012201420162018202020222024Application filedOct 21, 2005PublishedJuly 25, 2007Patent grantedJuly 8, 2009Term endedOct 21, 2025

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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