Granted Patent
Utility
US 5,377,817 · App. 08/173,774
Bi-directional accumulation roller conveyor
Inventor:
Robert E. Kohl
Patented Case
View Patent ↗
Granted: Jan 3, 1995
Filed: Dec 22, 1993
Inventor
Robert E. Kohl
Assignee (at issue)
JERVIS B. WEBB 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.