Granted Patent
Utility
US 5,863,620 · App. 08/545,816
Process and apparatus for coating printed circuit boards
Inventor:
Hans Schafer
Patented Case
View Patent ↗
Granted: Jan 26, 1999
Filed: Dec 29, 1995
Inventor
Hans Schafer
Assignee (at issue)
Ciba-Geigy
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.