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Expired European patentEurope

Muzzle cover for fire tube arms

EP 0022756 B1 · Applicant: Förenade Fabriksverken

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 June 10, 1980 and granted April 25, 1984. A European patent lasts at most 20 years from filing, so its term ended June 10, 2000.
  • 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 December 10, 2005.
  • 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.
FiledJune 10, 1980
PublishedJanuary 21, 1981
GrantedApril 25, 1984
Term endedJune 10, 2000
Application numberEP 80850085
Classification (CPC)F41F3/042 +2 more

Timeline

Timeline From EPO dates

1981198319851987198919911993199519971999Application filedJune 10, 1980PublishedJan 21, 1981Patent grantedApril 25, 1984Term endedJune 10, 2000

Sources & verification