Granted Patent
Utility
US 5,410,399 · App. 06/626,461
Interpolative direction determining system
Inventor:
Philip M. Johnson
Patented Case
View Patent ↗
Granted: Apr 25, 1995
Filed: May 30, 1994
Inventor
Philip M. Johnson
Assignee (at issue)
Lockheed Sanders, 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.