Granted Patent
Utility
US 4,648,082 · App. 06/707,957
Marine acoustic gradient sensor
Inventor:
Carl H. Savit
Patented Case
View Patent ↗
Granted: Mar 3, 1987
Filed: Mar 4, 1985
Inventor
Carl H. Savit
Assignee (at issue)
Western Geophysical Company of America
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.