Granted Patent
Utility
US 4,492,304 · App. 06/330,649
Conveyor chain retainer shoe
Inventor:
Robert J. Geis
Patented Case
View Patent ↗
Granted: Jan 8, 1985
Filed: Dec 14, 1981
Inventor
Robert J. Geis
Assignee (at issue)
FMC CORPORATION
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.