Granted Patent
Utility
US 5,748,074 · App. 08/747,912
Electronic door chime
Inventor:
Marc Chomet
Patented Case
View Patent ↗
Granted: May 5, 1998
Filed: Nov 12, 1996
Inventor
Marc Chomet
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.