Granted Patent
Utility
US 5,226,488 · App. 07/728,202
Truck mounted boring system
Inventors:
Willie J. Lessard, Brian Wilcox, Michael Tjader
Patented Case
View Patent ↗
Granted: Jul 13, 1993
Filed: Jul 10, 1991
Inventors
Willie J. Lessard
Brian Wilcox
Michael Tjader
Assignee (at issue)
bor-mor, 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.