Granted Patent
Utility
US 4,323,953 · App. 06/151,262
Floodlight
Inventor:
Mark Hutchison
Patented Case
View Patent ↗
Granted: Apr 6, 1982
Filed: May 19, 1980
Inventor
Mark Hutchison
Assignee (at issue)
National Service 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.