IP Library Granted Patent US 4,319,923
Granted Patent Utility
US 4,319,923 · App. 06/193,875

Recovery of gold and/or palladium from an iodide-iodine etching solution

Inventors: Bruno J. Falanga, David MacDonald
Patented Case View Patent ↗
Granted: Mar 16, 1982 Filed: Oct 3, 1980
Inventors
Bruno J. Falanga
David MacDonald
Assignee (at issue)
Western Electric Company, Inc.

This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.

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Quick Facts
Patent No.
US 4,319,923
App. No.
06/193,875
Filed
1980-10-03
Granted
1982-03-16
Kind
A