Granted Patent
Utility
US 5,563,456 · App. 08/127,203
Solar powered annunciator
Inventor:
Walter Berger
Patented Case
View Patent ↗
Granted: Oct 8, 1996
Filed: Sep 24, 1993
Inventor
Walter Berger
Assignee (at issue)
Murphy Management, 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.