IP Library › Granted Patent US 4,443,253
Granted Patent Utility
US 4,443,253 · App. 06/417,829

Recovery of zinc from zinc containing sulphidic materials

Inventors: Donald R. Weir, Ian M. Masters
Patented Case View Patent ↗
Granted: Apr 17, 1984 Filed: Sep 14, 1982
Inventors
Donald R. Weir
Ian M. Masters
Assignee (at issue)
Sherritt Gordon Mines Limited

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Quick Facts
Patent No.
US 4,443,253
App. No.
06/417,829
Filed
1982-09-14
Granted
1984-04-17
Kind
A