Granted Patent
Utility
US 6,715,302 · App. 10/195,200
Menu-based control system for refrigerator that predicts order and replace dates for filters
Inventor:
Nelson J. Ferragut, II
Patented Case
View Patent ↗
Granted: Apr 6, 2004
Filed: Jul 15, 2002
Inventor
Nelson J. Ferragut, II
Assignee (at issue)
Maytag Corporation
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.