Granted Patent
Utility
US 5,842,990 · App. 08/916,937
Stereotactic ultrasonic diagnostic process
Inventor:
Wolfgang F. Kraske
Patented Case
View Patent ↗
Granted: Dec 1, 1998
Filed: Aug 21, 1997
Inventor
Wolfgang F. Kraske
Assignee (at issue)
NORTHROP GRUMMAN CORPORATION
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.