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Expired European patentEurope

Process for removing titanium or vanadium alkoxide from liquid hydrocarbon mixtures

EP 0771776 B1 · Applicant: UNION CARBIDE CHEMICALS & PLASTICS TECHNOLOGY CORPORATION

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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 31, 1996 and granted March 17, 1999. A European patent lasts at most 20 years from filing, so its term ended October 31, 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 May 1, 2022.
  • 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 31, 1996
PublishedMay 7, 1997
GrantedMarch 17, 1999
Term endedOctober 31, 2016
Application numberEP 96307892
Classification (CPC)C07C17/38 +2 more

Timeline

Timeline From EPO dates

1997199920012003200520072009201120132015Application filedOct 31, 1996PublishedMay 7, 1997Patent grantedMarch 17, 1999Term endedOct 31, 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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