A cartridge assembly for multiple projectiles
CA 2489774 A1 · Owner: O'Dwyer, James Michael · Inventors: Bambach, Ramon John; O'Dwyer, James Michael; Bishop, Ben
Overview
Its claims, description and drawings are in the Canadian Patents Database.
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Abstract From the Canadian patent
A cartridge assembly (10) for firearms or weapons said cartridge assembly , including a support body (11) having a central longitudinal channel (16) housing a plurality of projectiles (20 22, 24) in end-to-end orientation and having a plurality of circumferential chambers (14) wherein each chamber , houses (14a, 14b 14c) at least one propellant charge (12a 12b, 12c) and is , located adjacent to a respective projectile; fluid communication means (18) included in the support body for communicating the products of a gaseous expansion of said propellant from a respective chamber (14) into said central longitudinal channel (16); whereby, upon initiation of a selected propellant charge …
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 June 20, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 20, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 20, 2025.
- 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.