Granted Patent
Utility
US 5,499,463 · App. 08/323,637
Power shovel with variable pitch braces
Inventors:
Richard L. Profio, Frederick W. Loeber
Patented Case
View Patent ↗
Granted: Mar 19, 1996
Filed: Oct 17, 1994
Inventors
Richard L. Profio
Frederick W. Loeber
Assignee (at issue)
Harnischfeger Corporation
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.