Granted Patent
Utility
US 4,382,616 · App. 06/263,567
Skate blade guard
Inventor:
Icaro Olivieri
Patented Case
View Patent ↗
Granted: May 10, 1983
Filed: May 21, 1981
Inventor
Icaro Olivieri
Assignee (at issue)
The Washington Group, LLC
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.