Granted Patent
Utility
US 4,661,233 · App. 06/858,325
Cathode/ground shield arrangement in a sputter coating apparatus
Inventor:
Albert D. Glasser
Patented Case
View Patent ↗
Granted: Apr 28, 1987
Filed: May 1, 1986
Inventor
Albert D. Glasser
Assignee (at issue)
Westinghouse Electric Company LLC
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.