Granted Patent
Utility
US 4,775,029 · App. 07/105,747
Collapsible tower boom lift
Inventors:
Wayne P. MacDonald, John F. DeStefan
Patented Case
View Patent ↗
Granted: Oct 4, 1988
Filed: Oct 8, 1987
Inventors
Wayne P. MacDonald
John F. DeStefan
Assignee (at issue)
JLG 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.