Granted Patent
Utility
US 5,331,602 · App. 08/053,032
Acoustic navigation and diving information system and method
Inventor:
Craig B. McLaren
Patented Case
View Patent ↗
Granted: Jul 19, 1994
Filed: Apr 26, 1993
Inventor
Craig B. McLaren
Assignee (at issue)
Hughes Aircraft 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.