Granted Patent
Utility
US 4,849,360 · App. 06/890,581
Apparatus and method for confining and decontaminating soil
Inventors:
Robert D. Norris, Richard A. Brown, George E. Hoag
Patented Case
View Patent ↗
Granted: Jul 18, 1989
Filed: Jul 30, 1986
Inventors
Robert D. Norris
Richard A. Brown
George E. Hoag
Assignee (at issue)
International Technology Group
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.