Granted Patent
Utility
US 5,511,267 · App. 08/371,565
Dock leveler hydraulic circuit
Inventor:
James C. Alexander
Patented Case
View Patent ↗
Granted: Apr 30, 1996
Filed: Jan 11, 1995
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.