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Expired European patentEurope

Sustained release drug delivery devices

EP 0577646 B1 · Applicant: UNIVERSITY OF KENTUCKY RESEARCH FOUNDATION

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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 February 21, 1992 and granted September 30, 1998. A European patent lasts at most 20 years from filing, so its term ended February 21, 2012.
  • 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 August 21, 2017.
  • 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.
FiledFebruary 21, 1992
PublishedJanuary 12, 1994
GrantedSeptember 30, 1998
Term endedFebruary 21, 2012
Application numberEP 92906830
Classification (CPC)A61P27/02 +2 more

Timeline

Timeline From EPO dates

1993199519971999200120032005200720092011Application filedFeb 21, 1992PublishedJan 12, 1994Patent grantedSep 30, 1998Term endedFeb 21, 2012

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.