Granted Patent
Utility
US 4,493,061 · App. 06/380,569
Stacked marine seismic source
Inventor:
Clifford H. Ray
Patented Case
View Patent ↗
Granted: Jan 8, 1985
Filed: May 21, 1982
Inventor
Clifford H. Ray
Assignee (at issue)
Fairfield Industries Incorporated
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.