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Expired European patentEurope

A process for the preparation of highly monodispersed polymeric hydrophilic nanoparticles

EP 0877033 B1 · Applicant: Ghosh, P.K.

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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 8, 1997 and granted September 12, 2007. A European patent lasts at most 20 years from filing, so its term ended May 8, 2017.
  • 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 8, 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.
FiledMay 8, 1997
PublishedNovember 11, 1998
GrantedSeptember 12, 2007
Term endedMay 8, 2017
Application numberEP 97303127
Classification (CPC)A61K9/5192 +2 more

Timeline

Timeline From EPO dates

1998200020022004200620082010201220142016Application filedMay 8, 1997PublishedNov 11, 1998Patent grantedSep 12, 2007Term endedMay 8, 2017

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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