Granted Patent
Utility
US 4,846,941 · App. 07/176,805
Electroplating bath and process for maintaining plated alloy composition stable
Inventors:
Arthur H. Graham, Kenneth B. Keating
Patented Case
View Patent ↗
Granted: Jul 11, 1989
Filed: Apr 1, 1988
Inventors
Arthur H. Graham
Kenneth B. Keating
Assignee (at issue)
E.I. DU PONT DE NEMOURS AND COMPANY
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.