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European application, no grantEurope

Process for removing toxic organic materials from weak aqueous solutions thereof

EP 0228086 A2 · Applicant: UNION CARBIDE CORPORATION

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Overview

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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 December 24, 1986 and never granted as a European patent. Had it been granted, its 20-year term would have ended December 24, 2006.
  • 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 June 24, 2012.
  • 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.
FiledDecember 24, 1986
PublishedJuly 8, 1987
GrantedNever granted
Term endedDecember 24, 2006
Application numberEP 86118043
Classification (CPC)C02F1/281

Timeline

Timeline From EPO dates

1987198919911993199519971999200120032005Application filedDec 24, 1986PublishedJuly 8, 1987Term endedDec 24, 2006

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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