Granted Patent
Utility
US 5,509,065 · App. 08/151,514
Dual span monitoring system for maintenance shelf control
Inventor:
Michael T. Fitzgerald
Patented Case
View Patent ↗
Granted: Apr 16, 1996
Filed: Nov 12, 1993
Inventor
Michael T. Fitzgerald
Assignee (at issue)
Teltrend, 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.