Granted Patent
Utility
US 5,612,928 · App. 07/847,512
Method and apparatus for classifying objects in sonar images
Inventors:
Paul H. Haley, James J. Oravec, Walter J. Petlevich, Jr., Philipp F. Schweizer
Patented Case
View Patent ↗
Granted: Mar 18, 1997
Filed: May 28, 1992
Inventors
Paul H. Haley
James J. Oravec
Walter J. Petlevich, Jr.
Philipp F. Schweizer
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.