Granted Patent
Utility
US 4,435,258 · App. 06/426,054
Method and apparatus for the recovery of palladium from spent electroless catalytic baths
Inventors:
James P. Melka, Jr., John F. Barnes
Patented Case
View Patent ↗
Granted: Mar 6, 1984
Filed: Sep 28, 1982
Inventors
James P. Melka, Jr.
John F. Barnes
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.