Granted Patent
Utility
US 5,567,255 · App. 08/322,820
Solid annular gas discharge electrode
Inventor:
George N. Steinberg
Patented Case
View Patent ↗
Granted: Oct 22, 1996
Filed: Oct 13, 1994
Inventor
George N. Steinberg
Assignee (at issue)
Integrated Process Equipment Corporation
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.