Granted Patent
Utility
US 4,846,934 · App. 07/246,057
Soil and groundwater remediation system
Inventor:
Terrance K. Carberry
Patented Case
View Patent ↗
Granted: Jul 11, 1989
Filed: Sep 19, 1988
Inventor
Terrance K. Carberry
Assignee (at issue)
Lockheed Corporation
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.