Granted Patent
Utility
US 5,596,549 · App. 08/498,829
Side look sonar apparatus and method
Inventor:
Robert W. Sheriff
Patented Case
View Patent ↗
Granted: Jan 21, 1997
Filed: Jul 6, 1995
Inventor
Robert W. Sheriff
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.