Granted Patent
Utility
US 4,635,558 · App. 06/537,484
Long span conveyor track and hanger
Inventor:
Robert A. Hoehn
Patented Case
View Patent ↗
Granted: Jan 13, 1987
Filed: Sep 30, 1983
Inventor
Robert A. Hoehn
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.