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Expired European patentEurope

Safety device for the trigger mechanism of a gas-operated shotgun

EP 0052083 B1 · Applicant: LUIGI FRANCHI S.p.A.

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 October 15, 1981 and granted February 6, 1985. A European patent lasts at most 20 years from filing, so its term ended October 15, 2001.
  • 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 April 15, 2007.
  • 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.
FiledOctober 15, 1981
PublishedMay 19, 1982
GrantedFebruary 6, 1985
Term endedOctober 15, 2001
Application numberEP 81830194
Classification (CPC)F41A3/38

Timeline

Timeline From EPO dates

1982198419861988199019921994199619982000Application filedOct 15, 1981PublishedMay 19, 1982Patent grantedFeb 6, 1985Term endedOct 15, 2001

Sources & verification