Granted Patent
Utility
US 5,943,389 · App. 09/036,575
X-ray tube rotating anode
Inventor:
David S. K. Lee
Patented Case
View Patent ↗
Granted: Aug 24, 1999
Filed: Mar 6, 1998
Inventor
David S. K. Lee
Assignee (at issue)
VARIAN MEDICAL SYSTEMS, 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.