Shellcase for controlling reflections of primer shockwaves
CA 2585962 C · Owner: Olin Corporation · Inventors: Stock, Michael Eugene, Jr.
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 shellcase body (50) for use as part of an ammunition cartridge which , includes a base portion (52) at one end a middle portion (54) having a , substantially straight sidewall (62) and joined with base portion (52) and a , shoulder portion (56) joined to and extending from middle portion (54). A neck portion (58) may be joined to and extend from shoulder portion (56). Shoulder portion (56) is typically annularly shaped and includes a semi~circular sidewall (72) that extends between an aft end (74) and a fore end (76). Semi~circular sidewall (72) has a curvature that is defined by a circular arc (78) having a predetermined radius (R) and a center (80) that is positioned a distance …
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 19, 2005 and granted August 26, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 19, 2025.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
- 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.