Granted Patent
Utility
US 4,597,425 · App. 06/664,123
Collapsible liquid storage tank
Inventor:
David N. Tally
Patented Case
View Patent ↗
Granted: Jul 1, 1986
Filed: Oct 23, 1984
Inventor
David N. Tally
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.