Granted Patent
Utility
US 5,378,059 · App. 08/150,872
Combined asphalt plant and soil remediation system
Inventor:
J. Donald Brock
Patented Case
View Patent ↗
Granted: Jan 3, 1995
Filed: Nov 12, 1993
Inventor
J. Donald Brock
Assignee (at issue)
Astec Industries, Inc.
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.