Granted Patent
Utility
US 4,375,247 · App. 06/250,744
Roller suspension
Inventor:
Robert T. McNeely
Patented Case
View Patent ↗
Granted: Mar 1, 1983
Filed: Aug 18, 1980
Inventor
Robert T. McNeely
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.