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Expired European patentEurope

Sealing film with an electric measuring instrument for detecting leaks in the film

EP 0510045 B1 · Applicant: VON WITZKE GMBH & CO.

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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 January 12, 1991 and granted August 2, 1995. A European patent lasts at most 20 years from filing, so its term ended January 12, 2011.
  • 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 12, 2016.
  • 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 12, 1991
PublishedOctober 28, 1992
GrantedAugust 2, 1995
Term endedJanuary 12, 2011
Application numberEP 91902102
Classification (CPC)E04D13/006 +1 more

Timeline

Timeline From EPO dates

1992199419961998200020022004200620082010Application filedJan 12, 1991PublishedOct 28, 1992Patent grantedAug 2, 1995Term endedJan 12, 2011

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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