Granted Patent
Utility
US 5,016,689 · App. 07/462,634
Safety tank apparatus for liquid storage
Inventors:
David C. McGarvey, David C. Whitman
Patented Case
View Patent ↗
Granted: May 21, 1991
Filed: Jan 8, 1990
Inventors
David C. McGarvey
David C. Whitman
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.