Granted Patent
Utility
US 4,643,300 · App. 06/721,730
Idler roll assembly
Inventor:
Thomas E. Morrison
Patented Case
View Patent ↗
Granted: Feb 17, 1987
Filed: Apr 10, 1985
Inventor
Thomas E. Morrison
Assignee (at issue)
Continental Conveyor & Equipment 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.