Granted Patent
Utility
US 5,544,381 · App. 08/284,248
Dock leveler hydraulic circuit
Inventor:
James C. Alexander
Patented Case
View Patent ↗
Granted: Aug 13, 1996
Filed: Aug 2, 1994
Inventor
James C. Alexander
Assignee (at issue)
United Dominion Industries, Inc.
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.