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Nanoparticles and microparticles of non-linear hydrophilic-hydrophobic multiblock copolymers

EP 0712421 A1 · Applicant: MASSACHUSETTS INSTITUTE OF TECHNOLOGY

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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 July 22, 1994 and never granted as a European patent. Had it been granted, its 20-year term would have ended July 22, 2014.
  • 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 January 22, 2020.
  • 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.
FiledJuly 22, 1994
PublishedMay 22, 1996
GrantedNever granted
Term endedJuly 22, 2014
Application numberEP 94925102
Classification (CPC)A61K51/1241 +2 more

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

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