Granted Patent
Utility
US 4,986,721 · App. 07/394,889
Extendable boom fork lift vehicle
Inventors:
James E. Lowder, Ronald R. Shinn, John Baker
Patented Case
View Patent ↗
Granted: Jan 22, 1991
Filed: Aug 17, 1989
Inventors
James E. Lowder
Ronald R. Shinn
John Baker
Assignee (at issue)
Eagle-Picher 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.