Granted Patent
Utility
US 5,031,370 · App. 07/535,560
Coupled drive rods for installing ground anchors
Inventor:
Thomas E. Jewett
Patented Case
View Patent ↗
Granted: Jul 16, 1991
Filed: Jun 11, 1990
Inventor
Thomas E. Jewett
Assignee (at issue)
Foresight 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.