Granted Patent
Utility
US 4,829,493 · App. 06/745,133
Sonar fish and bottom finder and display
Inventor:
James B. Bailey
Patented Case
View Patent ↗
Granted: May 9, 1989
Filed: Jun 14, 1985
Inventor
James B. Bailey
Assignee (at issue)
Techsonic Industries, 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.