Granted Patent
Utility
US 5,012,749 · App. 07/595,692
Radio controlled material handling apparatus
Inventor:
Robert Passage
Patented Case
View Patent ↗
Granted: May 7, 1991
Filed: Oct 4, 1990
Inventor
Robert Passage
Assignee (at issue)
The Allen Company, 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.