Granted Patent
Utility
US 4,778,310 · App. 06/930,788
Means for installing membranes in containment pits for tanks storing liquids
Inventor:
Jack Moreland
Patented Case
View Patent ↗
Granted: Oct 18, 1988
Filed: Nov 14, 1986
Inventor
Jack Moreland
Assignee (at issue)
MPC Containment Systems 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.