Granted Patent
Utility
US 4,373,758 · App. 06/294,759
Multiple roller bogey assembly
Inventor:
Richard E. Livesay
Patented Case
View Patent ↗
Granted: Feb 15, 1983
Filed: Aug 10, 1981
Inventor
Richard E. Livesay
Assignee (at issue)
Caterpillar Tractor Co.
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.