Granted Patent
Utility
US 5,406,993 · App. 08/193,416
Safety tank apparatus for liquid storage
Inventor:
David C. McGarvey
Patented Case
View Patent ↗
Granted: Apr 18, 1995
Filed: Feb 7, 1994
Inventor
David C. McGarvey
Assignee (at issue)
LRS, 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.