Granted Patent
Utility
US 5,044,490 · App. 07/444,461
Belt conveyor idler support frame
Inventor:
Charles East
Patented Case
View Patent ↗
Granted: Sep 3, 1991
Filed: Dec 1, 1989
Inventor
Charles East
Assignee (at issue)
FMC 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.