Blasting agent in microcapsule form
CA 1304584 C · Owner: Sudweeks, Walter B. · Inventors: Sudweeks, Walter B.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
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Abstract From the Canadian patent
The invention relates to a blasting agent in the form of microcapsules of inorganic oxidizer salt droplets encapsulated in a thin coating of an organic fuel and to methods for manufacturing the blasting agent microcapsules. R6761
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 July 7, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 7, 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.