Granted Patent
Utility
US 5,117,400 · App. 07/632,528
Optical calibration of towed sensor array
Inventors:
William A. Penn, Donald Winfield
Patented Case
View Patent ↗
Granted: May 26, 1992
Filed: Dec 24, 1990
Inventors
William A. Penn
Donald Winfield
Assignee (at issue)
General Electric Company
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.