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Expired European patentEurope

Safety device for an externally powered gun

EP 0111240 B1 · Applicant: Werkzeugmaschinenfabrik Oerlikon-Bührle AG

EPO PDF

Overview

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

No Claude kit for weapons

Claude doesn't help design weapons, ammunition or explosives, so this page has no Reinvent kit. To develop this one, work with a federally licensed manufacturer (many of these items are regulated) and a registered patent attorney or agent, listed on the USPTO roster.

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.

Why it's free to use

  • Filed November 29, 1983 and granted April 1, 1987. A European patent lasts at most 20 years from filing, so its term ended November 29, 2003.
  • 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 May 29, 2009.
  • 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.
FiledNovember 29, 1983
PublishedJune 20, 1984
GrantedApril 1, 1987
Term endedNovember 29, 2003
Application numberEP 83111925
Classification (CPC)F41A17/18 +2 more

Timeline

Timeline From EPO dates

1984198619881990199219941996199820002002Application filedNov 29, 1983PublishedJune 20, 1984Patent grantedApril 1, 1987Term endedNov 29, 2003

Sources & verification