Granted Patent
Utility
US 6,105,723 · App. 08/771,873
Steel plank for scaffolding
Inventor:
Michael S. D'Alessio
Patented Case
View Patent ↗
Granted: Aug 22, 2000
Filed: Dec 23, 1996
Inventor
Michael S. D'Alessio
Assignee (at issue)
HARSCO 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.