Granted Patent
Utility
US 5,535,096 · App. 08/379,270
Safety lock-out device for electrical appliances
Inventor:
Paul L. Cliff, Jr.
Patented Case
View Patent ↗
Granted: Jul 9, 1996
Filed: Jan 27, 1995
Inventor
Paul L. Cliff, Jr.
Assignee (at issue)
Universities Research Association, 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.