Granted Patent
Utility
US 4,849,059 · App. 07/243,692
Aqueous electroplating bath and method for electroplating tin and/or lead and a defoaming agent therefor
Inventors:
Lev Deresh, William R. Kelly
Patented Case
View Patent ↗
Granted: Jul 18, 1989
Filed: Sep 13, 1988
Inventors
Lev Deresh
William R. Kelly
Assignee (at issue)
MacDermid, Incorporated
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.