Granted Patent
Utility
US 5,170,713 · App. 07/594,795
Wheel assembly for a storage and retrieval machine
Inventor:
Steven R. Parewski
Patented Case
View Patent ↗
Granted: Dec 15, 1992
Filed: Oct 9, 1990
Inventor
Steven R. Parewski
Assignee (at issue)
Harnischfeger Engineers, 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.