Explosive device and method of using such a device
CA 2412604 A1 · Owner: Powell, Kevin Mark · Inventors: Powell, Kevin Mark
Overview
Its claims, description and drawings are in the Canadian Patents Database.
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Abstract From the Canadian patent
An explosive device (10) comprising: an explosive charge body (12) including an explosive charge and detonator (21); a housing (22) attached to the explosive charge body (12); and a length of electrical or non-electrical nonpyrotechnic firing line (26) having a first (28) and second end (32) the majority of which is stored within the housing so as to permit progressive removal from the housing on pulling the first end (28) thereof and which is , attached at the second end (32) to the detonator (21). The explosive device (10) can be used in a versatile manner for avalanche control can allow a , degree of positioning after initial deployment and provide safe operation yet is easily …
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 30, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 30, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 30, 2022.
- 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.