Granted Patent
Utility
US 4,279,563 · App. 06/055,055
Unmanned material handling system for servicing a multi-level structure
Inventor:
William R. Miller
Patented Case
View Patent ↗
Granted: Jul 21, 1981
Filed: Jul 5, 1979
Inventor
William R. Miller
Assignee (at issue)
American Sterilizer 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.