IP Library › Granted Patent US 4,236,957
Granted Patent Utility
US 4,236,957 · App. 06/051,762

Dissolution of metals utilizing an aqueous H.sub.2 SO.sub.Y --H.sub.2 O.sub. -mercapto containing heterocyclic nitrogen etchant

Inventors: Silvester P. Valayil, Moenes L. Elias
Patented Case View Patent ↗
Granted: Dec 2, 1980 Filed: Jun 25, 1979
Inventors
Silvester P. Valayil
Moenes L. Elias
Assignee (at issue)
Dart Industries Inc.

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Quick Facts
Patent No.
US 4,236,957
App. No.
06/051,762
Filed
1979-06-25
Granted
1980-12-02
Kind
A