Granted Patent
Utility
US 5,554,990 · App. 08/518,133
Airspace management system and method
Inventor:
Terry L. McKinney
Patented Case
View Patent ↗
Granted: Sep 10, 1996
Filed: Aug 22, 1995
Inventor
Terry L. McKinney
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.