Expired European patentEurope
Improvements in shot gun cartridges
EP 0497841 B1 · Applicant: THE KENT CARTRIDGE MANUFACTURING COMPANY LIMITED
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 October 23, 1990 and granted January 24, 1996. A European patent lasts at most 20 years from filing, so its term ended October 23, 2010.
- 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 April 23, 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.
FiledOctober 23, 1990
PublishedAugust 12, 1992
GrantedJanuary 24, 1996
Term endedOctober 23, 2010
Application numberEP 90916110
Classification (CPC)F42B7/08
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.