Granted Patent
Utility
US 5,391,252 · App. 08/252,630
Plasma pressure control assembly
Inventor:
William D. Taylor
Patented Case
View Patent ↗
Granted: Feb 21, 1995
Filed: Jun 2, 1994
Inventor
William D. Taylor
Assignee (at issue)
Hughes Aircraft Company
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.