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Expired European patentEurope

Method for controlling an expiratory valve in a ventilator

EP 0965357 B1 · Applicant: Siemens-Elema AB

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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 11, 1999 and granted March 7, 2007. A European patent lasts at most 20 years from filing, so its term ended May 11, 2019.
  • 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 11, 2024.
  • 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 11, 1999
PublishedDecember 22, 1999
GrantedMarch 7, 2007
Term endedMay 11, 2019
Application numberEP 99109454
Classification (CPC)A61M16/20 +2 more

Timeline

Timeline From EPO dates

2000200220042006200820102012201420162018Application filedMay 11, 1999PublishedDec 22, 1999Patent grantedMarch 7, 2007Term endedMay 11, 2019

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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