Water-resistant anfo explosive
CA 1298973 C · Owner: Munro, Neil William · Inventors: Munro, Neil William
Overview
Its claims, description and drawings are in the Canadian Patents Database.
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Abstract From the Canadian patent
AECI 576, ABSTRACT, "Water-Resistant ANFO Explosive" The invention provides an ammonium nitrate/fuel oil (ANFO-type) explosive in which the ammonium nitrate comprises ammonium nitrate prills and ammonium nitrate powder. The prills form at least 30% by mass of the ammonium nitrate, the powder forms at least 20% by mass of the ammonium nitrate, and the average particle size of the prills is at least 5 times greater than the average particle size of the powder.
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
- Granted April 21, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 21, 2009.
- 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.