Granted Patent
Utility
US 4,570,786 · App. 06/562,631
Conveyor pulley
Inventor:
Thomas E. Morrison
Patented Case
View Patent ↗
Granted: Feb 18, 1986
Filed: Dec 19, 1983
Inventor
Thomas E. Morrison
Assignee (at issue)
B. F. Goodrich 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.