Granted Patent
Utility
US 5,000,310 · App. 07/367,831
Chain and flight conveyor
Inventor:
Wayne L. Edmondson
Patented Case
View Patent ↗
Granted: Mar 19, 1991
Filed: Jun 16, 1989
Inventor
Wayne L. Edmondson
Assignee (at issue)
Joy Technologies 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.