IP Library › Granted Patent US 4,784,785
Granted Patent Utility
US 4,784,785 · App. 07/139,589

Copper etchant compositions

Inventors: John L. Cordani, Raymond A. Letize
Patented Case View Patent ↗
Granted: Nov 15, 1988 Filed: Dec 29, 1987
Inventors
John L. Cordani
Raymond A. Letize
Assignee (at issue)
MacDermid, Incorporated

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Quick Facts
Patent No.
US 4,784,785
App. No.
07/139,589
Filed
1987-12-29
Granted
1988-11-15
Kind
A