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Expired European patentEurope

Process for regenerating ion exchange resins in the process of decalcifying sugar juices

EP 0832986 B1 · Applicant: Saint-Louis Sucre S.A.

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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 September 17, 1997 and granted November 19, 2003. A European patent lasts at most 20 years from filing, so its term ended September 17, 2017.
  • A supplementary protection certificate, which can extend a medicine or crop-protection patent, adds at most five and a half years, so even that would have ended by March 17, 2023.
  • 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.
FiledSeptember 17, 1997
PublishedApril 1, 1998
GrantedNovember 19, 2003
Term endedSeptember 17, 2017
Application numberEP 97402149
Classification (CPC)C13B20/144

Timeline

Timeline From EPO dates

1998200020022004200620082010201220142016Application filedSep 17, 1997PublishedApril 1, 1998Patent grantedNov 19, 2003Term endedSep 17, 2017

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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