Ejection-assist mechanism for automatic firearms
CA 2303285 A1 · Owner: Snc Technologies Inc. · Inventors: Dionne, Sylvain
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordNo Claude kit for weapons
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Abstract From the Canadian patent
A barrel for an automatic firearm which cycles on recoil action is provided with a transverse pin (13) extending across the top of the rearward portion of the chamber. This pin nests within the extraction groove of a cartridge casing during firing. On cycling, the transverse pin (13) deflects the spent case downwardly towards an ejector (3) which effects ejection of the casing.
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 August 13, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 13, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 13, 2021.
- 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.