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Expired European patentEurope

Improved process for the preparation of zms-5 zeolites

EP 1817258 B1 · Applicant: SASOL ITALY S.p.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 October 25, 2005 and granted February 16, 2011. A European patent lasts at most 20 years from filing, so its term ended October 25, 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 25, 2005
PublishedAugust 15, 2007
GrantedFebruary 16, 2011
Term endedOctober 25, 2025
Application numberEP 05795991
Classification (CPC)C01B39/38 +1 more

Timeline

Timeline From EPO dates

2006200820102012201420162018202020222024Application filedOct 25, 2005PublishedAug 15, 2007Patent grantedFeb 16, 2011Term endedOct 25, 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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