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Expired European patentEurope

Drug delivery apparatus having chamber with chimney

EP 0444761 B1 · Applicant: BAXTER INTERNATIONAL INC.

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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 May 28, 1987 and granted February 2, 1994. A European patent lasts at most 20 years from filing, so its term ended May 28, 2007.
  • 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 28, 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.
FiledMay 28, 1987
PublishedSeptember 4, 1991
GrantedFebruary 2, 1994
Term endedMay 28, 2007
Application numberEP 91201018
Classification (CPC)A61M5/1409

Timeline

Timeline From EPO dates

1988199019921994199619982000200220042006Application filedMay 28, 1987PublishedSep 4, 1991Patent grantedFeb 2, 1994Term endedMay 28, 2007

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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