Granted Patent
Utility
US 5,949,147 · App. 08/862,597
Short circuit safety audible monitor
Inventors:
Michael C. McGrath, Michael A. Hedding, Charles L. Robertson
Patented Case
View Patent ↗
Granted: Sep 7, 1999
Filed: May 23, 1997
Inventors
Michael C. McGrath
Michael A. Hedding
Charles L. Robertson
Assignee (at issue)
Hayes Lemmerz International, 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.