A semi-automatic gas-operated shotgun with an improved safety device
CA 2225348 A1 · Owner: Plebani, Dario · Inventors: Plebani, Dario
Overview
Its claims, description and drawings are in the Canadian Patents Database.
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Abstract From the Canadian patent
A semi-automatic gas-operated shotgun includes a safety device (23-24) which locks the firing mechanisms of the gun and simultaneously locks the breech-block slide (9) in the open position spaced, from the cartridge chamber (5) of the gun by the, operation of a single safety button (23).
Read the whole patent
Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents.
Why it's free to use
- Filed December 19, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 19, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 19, 2019.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.