Granted Patent
Utility
US 4,369,730 · App. 06/244,383
Cathode for generating a plasma
Inventors:
Masatsugu Izu, Timothy Barnard, David A. Gattuso
Patented Case
View Patent ↗
Granted: Jan 25, 1983
Filed: Mar 16, 1981
Inventors
Masatsugu Izu
Timothy Barnard
David A. Gattuso
Assignee (at issue)
Energy Conversion Devices, 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.