Granted Patent
Utility
US 5,111,358 · App. 07/672,177
Electrical equipment with mode indicator
Inventor:
Leonard Ernst
Patented Case
View Patent ↗
Granted: May 5, 1992
Filed: Mar 20, 1991
Inventor
Leonard Ernst
Assignee (at issue)
Dowty RFL 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.