Granted Patent
Utility
US 5,425,923 · App. 07/966,999
Thermal soil remediation system
Inventors:
George W. Swisher, Jr., Jerry R. Collette
Patented Case
View Patent ↗
Granted: Jun 20, 1995
Filed: Oct 27, 1992
Inventors
George W. Swisher, Jr.
Jerry R. Collette
Assignee (at issue)
CMI LIMITED CO.
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.