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Expired European patentEurope

Flat key profile for a cylinder lock key

EP 0261298 B1 · Applicant: EVVA - Werk Spezialerzeugung von Zylinder-und Sicherheitsschlössern Gesellschaft m.b.H. & Co. Kommanditgesellschaft

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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 28, 1987 and granted January 15, 1992. A European patent lasts at most 20 years from filing, so its term ended January 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 July 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.
FiledJanuary 28, 1987
PublishedMarch 30, 1988
GrantedJanuary 15, 1992
Term endedJanuary 28, 2007
Application numberEP 87101157
Classification (CPC)E05B19/0017

Timeline

Timeline From EPO dates

1988199019921994199619982000200220042006Application filedJan 28, 1987PublishedMarch 30, 1988Patent grantedJan 15, 1992Term endedJan 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

Everything on this page comes from the EPO record linked above. EPO data used under CC BY 4.0.