Granted Patent
Utility
US 4,456,132 · App. 06/214,190
Control system for automatic material handling crane
Inventors:
Dean R. LaValle, Philip A. McLain
Patented Case
View Patent ↗
Granted: Jun 26, 1984
Filed: Dec 8, 1980
Inventors
Dean R. LaValle
Philip A. McLain
Assignee (at issue)
PAR SYSTEMS, LLC
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.