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Expired European patentEurope

Self-closing valve, especially for water

EP 0326058 B1 · Applicant: R. UND D. ROTTER GESELLSCHAFT MIT BESCHRÄNKTER HAFTUNG MED.-CHEM.APPARATE- UND ANLAGENBAU

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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 January 23, 1989 and granted March 30, 1994. A European patent lasts at most 20 years from filing, so its term ended January 23, 2009.
  • 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 July 23, 2014.
  • 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.
FiledJanuary 23, 1989
PublishedAugust 2, 1989
GrantedMarch 30, 1994
Term endedJanuary 23, 2009
Application numberEP 89101119
Classification (CPC)F16K21/04 +2 more

Timeline

Timeline From EPO dates

1990199219941996199820002002200420062008Application filedJan 23, 1989PublishedAug 2, 1989Patent grantedMarch 30, 1994Term endedJan 23, 2009

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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