Granted Patent
Utility
US 5,117,526 · App. 07/724,626
Vertically storing dock leveler
Inventor:
James C. Alexander
Patented Case
View Patent ↗
Granted: Jun 2, 1992
Filed: Jul 2, 1991
Inventor
James C. Alexander
Assignee (at issue)
Serco
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.