Granted Patent
Utility
US 5,986,557 · App. 09/037,212
Three-phase fuse status indicator
Inventor:
Roger S. Clarke
Patented Case
View Patent ↗
Granted: Nov 16, 1999
Filed: Mar 10, 1998
Inventor
Roger S. Clarke
Assignee (at issue)
Automatic Timing & Controls, 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.