Patent Yard Sign in
Expired European patentEurope

Process for synthesizing powder polyvinyl amine (pva) type flocculating and coagulating agents

EP 1171487 B1 · Applicant: SNF SAS

EPO PDF

Overview

The published document from the EPO: abstract, claims, description and drawings. Open it full size

Read the whole patent

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.

Google PatentsEPO PDF

Why it's free to use

  • Filed March 9, 2000 and granted January 10, 2007. A European patent lasts at most 20 years from filing, so its term ended March 9, 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 September 9, 2025.
  • 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.
FiledMarch 9, 2000
PublishedJanuary 16, 2002
GrantedJanuary 10, 2007
Term endedMarch 9, 2020
Application numberEP 00910929
Classification (CPC)C08F26/02 +1 more

Timeline

Timeline From EPO dates

2001200320052007200920112013201520172019Application filedMarch 9, 2000PublishedJan 16, 2002Patent grantedJan 10, 2007Term endedMarch 9, 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

Everything on this page comes from the EPO record linked above. EPO data used under CC BY 4.0.