Captive soft-point bullet
CA 2362404 C · Owner: Federal Cartridge Company · Inventors: Burczynski, Thomas J.; Head, Larry P.; Pilarski, Craig S.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
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Abstract From the Canadian patent
A bullet comprised of a jacket (10) of malleable metal having a closed nose portion encapsulating a forward core (17) made of rubber the nose portion , having circumferentially spaced axially extending deep scores (14) in its nose-defining walls (12), and a rear core (18) within the jacket made of a malleable metal preferably softer than that of the jacket and hard-seated against the rear of the rubber core to bring pressure against the interior surface of the meplat and the interior surface of the nose-defining walls (12) of the nose portion, whereby upon the bullet striking and penetrating a target, the scores (14) will rupture and the nose-defining walls (12) of the nose portion …
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 September 1, 1999 and granted August 19, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 1, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 1, 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.