Method of downhole hydraulicking mineral resources
CA 2004438 A1 · Owner: Moskovsky Geologorazvedochny Institut Imeni Sergo Ordzhonikidze · Inventors: Abramov, Grigory J.; Babichev, Nikolai I.; Dmitriev, Viktor A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract, A method of downhole hydraulicking mineral resources pursuant whereto production panels are laid out at a deposit, holes are sunk in a longitudinal axis of each production panel, a means of hydraulicking mineral resources -- comprising a monitor and a means of lifting pulp to the surface -- is lowered into each of the holes. A mineral is broken hydraulically by a jet from the monitor, displacing at least once in a horizontal plane within confines of a main sector extending in a direction opposite to that in which a next hole is located, in radial working so that pillars are formed therebetween An angle of each radial working is about the divergence angle of the jet of the monitor, …
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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, and the Claude kit works from them.
Why it's free to use
- Filed December 1, 1989. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 1, 2009.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 1, 2011.
- 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.