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.