Granted Patent
Utility
US 4,974,276 · App. 07/306,963
Dock leveler hold-down with variable position safety legs
Inventor:
James C. Alexander
Patented Case
View Patent ↗
Granted: Dec 4, 1990
Filed: Feb 6, 1989
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.