Granted Patent
Utility
US 5,923,727 · App. 08/940,923
Method and apparatus for calibrating an intra-operative X-ray system
Inventor:
Nassir Navab
Patented Case
View Patent ↗
Granted: Jul 13, 1999
Filed: Sep 30, 1997
Inventor
Nassir Navab
Assignee (at issue)
Siemens Corporate Research, 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.