Granted Patent
Utility
US 4,646,560 · App. 06/832,268
System and method for leak detection in liquid storage tanks
Inventors:
Joseph W. Maresca, Jr., Christopher P. Wilson
Patented Case
View Patent ↗
Granted: Mar 3, 1987
Filed: Feb 21, 1986
Inventors
Joseph W. Maresca, Jr.
Christopher P. Wilson
Assignee (at issue)
VISTA RESEARCH GROUP, LLC
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.