Expired European patentEurope
Muzzle brake for large-caliber gun
EP 0471920 B1 · Applicant: Rheinmetall Industrie GmbH
Overview
The published document from the EPO: abstract, claims, description and drawings. Open it full size
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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 April 10, 1991 and granted February 22, 1995. A European patent lasts at most 20 years from filing, so its term ended April 10, 2011.
- 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 October 10, 2016.
- 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.
FiledApril 10, 1991
PublishedFebruary 26, 1992
GrantedFebruary 22, 1995
Term endedApril 10, 2011
Application numberEP 91105675
Classification (CPC)F41A21/32 +2 more
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.