Granted Patent
Utility
US 5,249,643 · App. 07/863,035
Vehicular self-propelled aerial work platform and telescoping parallelogram boom therefor
Inventors:
Robert D. Backer, Donald C. Hade, Jr.
Patented Case
View Patent ↗
Granted: Oct 5, 1993
Filed: Apr 3, 1992
Inventors
Robert D. Backer
Donald C. Hade, Jr.
Assignee (at issue)
Kiddie 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.