Frangible nonlethal projectile
CA 2038100 C · Owner: General Dynamics Ordnance And Tactical Systems - Canada Inc. · Inventors: Luxton, David
Overview
Its claims, description and drawings are in the Canadian Patents Database.
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Abstract From the Canadian patent
A nonlethal frangible projectile (1) for delivering fluids and the like to a target is composed of a soft cap portion (4), and a stronger bass portion (7) which plugs the rearward end of the cap. Scoring (19) and a thinned nose region (18) facilitates rupture upon impact.
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 March 12, 1991 and granted May 22, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 12, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 12, 2013.
- 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.