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Expired European patentEurope

Anti-scaling agent for coating of polymerization reactors

EP 0824550 B1 · Applicant: C.I.R.S. 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 May 7, 1996 and granted January 12, 2000. A European patent lasts at most 20 years from filing, so its term ended May 7, 2016.
  • 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 November 7, 2021.
  • 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.
FiledMay 7, 1996
PublishedFebruary 25, 1998
GrantedJanuary 12, 2000
Term endedMay 7, 2016
Application numberEP 96914381
Classification (CPC)C08F2/004

Timeline

Timeline From EPO dates

1997199920012003200520072009201120132015Application filedMay 7, 1996PublishedFeb 25, 1998Patent grantedJan 12, 2000Term endedMay 7, 2016

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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