Expired European patentEurope
Protection cover for a gun barrel
EP 0033770 B1 · Applicant: Rheinmetall GmbH
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, 1980 and granted February 15, 1984. A European patent lasts at most 20 years from filing, so its term ended November 29, 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 May 29, 2006.
- 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, 1980
PublishedAugust 19, 1981
GrantedFebruary 15, 1984
Term endedNovember 29, 2000
Application numberEP 80107485
Classification (CPC)F41A21/44
Timeline
Timeline From EPO dates
Sources & verification
Official EPO records
Everything on this page comes from the EPO record linked above. EPO data used under CC BY 4.0.