Granted Patent
Utility
US 5,562,814 · App. 08/522,518
Sludge-limiting tin and/or lead electroplating bath
Inventor:
John Richard Kirby
Patented Case
View Patent ↗
Granted: Oct 8, 1996
Filed: Sep 1, 1995
Inventor
John Richard Kirby
Assignee (at issue)
Dale Electronics, 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.