Granted Patent
Utility
US 5,520,589 · App. 08/482,418
Differential
Inventors:
Gregory T. DeWald, Charles D. Schaber
Patented Case
View Patent ↗
Granted: May 28, 1996
Filed: Jun 7, 1995
Inventors
Gregory T. DeWald
Charles D. Schaber
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.