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Expired European patentEurope

Tamper-proof ring for containers

EP 0299017 B1 · Applicant: WALTER WIEDMER AG PLASTIKFORM

EPO PDF

Overview

The published document from the EPO: abstract, claims, description and drawings. Open it full size

Read the whole patent

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.

Why it's free to use

  • Filed January 27, 1988 and granted October 2, 1991. A European patent lasts at most 20 years from filing, so its term ended January 27, 2008.
  • 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 27, 2013.
  • 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 27, 1988
PublishedJanuary 18, 1989
GrantedOctober 2, 1991
Term endedJanuary 27, 2008
Application numberEP 88900807
Classification (CPC)B65D41/3447

Timeline

Timeline From EPO dates

1989199119931995199719992001200320052007Application filedJan 27, 1988PublishedJan 18, 1989Patent grantedOct 2, 1991Term endedJan 27, 2008

Sources & verification