Granted Patent
Utility
US 6,578,514 · App. 09/867,653
Modular device of tubular plasma source
Inventor:
David Tu
Patented Case
View Patent ↗
Granted: Jun 17, 2003
Filed: May 31, 2001
Inventor
David Tu
Assignee (at issue)
Duratek, 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.