Granted Patent
Utility
US 5,462,191 · App. 08/192,268
Double-walled underground storage tank
Inventors:
David H. Bartlow, Edward B. Cannan, Jr.
Patented Case
View Patent ↗
Granted: Oct 31, 1995
Filed: Feb 7, 1994
Inventors
David H. Bartlow
Edward B. Cannan, Jr.
Assignee (at issue)
Fluid Containment, 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.