Expired European patentEurope
Anti-bending device for a gun barrel
EP 0307308 B1 · Applicant: ETAT-FRANCAIS représenté par le DELEGUE GENERAL POUR L'ARMEMENT (DPAG)
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 September 8, 1988 and granted March 27, 1991. A European patent lasts at most 20 years from filing, so its term ended September 8, 2008.
- 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 March 8, 2014.
- 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.
FiledSeptember 8, 1988
PublishedMarch 15, 1989
GrantedMarch 27, 1991
Term endedSeptember 8, 2008
Application numberEP 88402251
Classification (CPC)F41A21/44 +1 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.