Granted Patent
Utility
US 5,248,091 · App. 07/858,112
Outer boom break-away
Inventor:
Michael M. Thyberg
Patented Case
View Patent ↗
Granted: Sep 28, 1993
Filed: Mar 26, 1992
Inventor
Michael M. Thyberg
Assignee (at issue)
CLARK EQUIPMENT COMPANY
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.