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Expired European patentEurope

Preparation of chemical pulp and xylose, utilizing a direct acid hydrolysis on the pulp

EP 1196641 B1 · Applicant: Danisco Sweeteners Oy

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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 July 13, 2000 and granted November 19, 2003. A European patent lasts at most 20 years from filing, so its term ended July 13, 2020.
  • 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 January 13, 2026.
  • 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.
FiledJuly 13, 2000
PublishedApril 17, 2002
GrantedNovember 19, 2003
Term endedJuly 13, 2020
Application numberEP 00949505
Classification (CPC)D21C3/02 +2 more

Timeline

Timeline From EPO dates

2001200320052007200920112013201520172019Application filedJuly 13, 2000PublishedApril 17, 2002Patent grantedNov 19, 2003Term endedJuly 13, 2020

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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