Explosives
CA 2103792 C · Owner: Technological Resources Pty Ltd. · Inventors: Gribble, David P.; Harries, Gwyn; Lye, Gary N.
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
An explosive composition comprising an oxidising agent such as ammonium nitrate (AN), and a fuel material which may include a fuel oil (FO) and which also comprises a solid fuel such as rubber particles or polystyrene beads ar flakes. The solid fuel is incorporated into the composition to provide for the controlled release of energy upon detonation of the explosive composition. It has been found that by substituting some or all of the liquid feel oil with a slower burning solid fuel, the time during which the pressure builds up during detonation is lengthened. Thus a low shock energy explosive (LSEE) can be produced having reduced shock energy and increased heave energy compared to …
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 February 11, 1992 and granted November 30, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 11, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 11, 2014.
- 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.