Granted Patent
Utility
US 4,976,141 · App. 07/487,832
Stepped rim for tire testing machine
Inventors:
Barry D. Cargould, James C. Beebe
Patented Case
View Patent ↗
Granted: Dec 11, 1990
Filed: Mar 5, 1990
Inventors
Barry D. Cargould
James C. Beebe
Assignee (at issue)
ILLINOIS TOOL WORKS 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.