Granted Patent
Utility
US 5,420,564 · App. 08/091,330
Door chime assembly
Inventor:
Duncan Remington
Patented Case
View Patent ↗
Granted: May 30, 1995
Filed: Jul 14, 1993
Inventor
Duncan Remington
Assignee (at issue)
Fred M. Schildwachter & Sons, 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.