Granted Patent
Utility
US 4,542,821 · App. 06/468,564
Hump back conveyor
Inventor:
Richard S. Livermore
Patented Case
View Patent ↗
Granted: Sep 24, 1985
Filed: Feb 22, 1983
Inventor
Richard S. Livermore
Assignee (at issue)
Lamb Weston, Inc.
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.