Patent Yard Sign in
Expired European patentEurope

Improvements relating to crossbows

EP 0113804 B1 · Applicant: B & P Barnett Limited

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 August 18, 1983 and granted November 8, 1989. A European patent lasts at most 20 years from filing, so its term ended August 18, 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 February 18, 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.
FiledAugust 18, 1983
PublishedJuly 25, 1984
GrantedNovember 8, 1989
Term endedAugust 18, 2003
Application numberEP 83108166
Classification (CPC)F41B5/12 +1 more

Timeline

Timeline From EPO dates

1984198619881990199219941996199820002002Application filedAug 18, 1983PublishedJuly 25, 1984Patent grantedNov 8, 1989Term endedAug 18, 2003

Sources & verification