Granted Patent
Utility
US 4,673,080 · App. 06/873,496
Article transport elevator
Inventor:
James G. Bartylla
Patented Case
View Patent ↗
Granted: Jun 16, 1987
Filed: Jun 12, 1986
Inventor
James G. Bartylla
Assignee (at issue)
Raymond Production Systems 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.