Granted Patent
Utility
US 4,365,682 · App. 06/219,648
Suspension system for operator compartment
Inventors:
G. Robert Frey, Joseph A. Rogus, Paul R. Johnson, Richard A. King
Patented Case
View Patent ↗
Granted: Dec 28, 1982
Filed: Dec 24, 1980
Inventors
G. Robert Frey
Joseph A. Rogus
Paul R. Johnson
Richard A. King
Assignee (at issue)
Joy Manufacturing 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.