Granted Patent
Utility
US 4,972,999 · App. 07/459,488
Ice piece barrier for selective ice crusher dispenser
Inventor:
James M. Grace
Patented Case
View Patent ↗
Granted: Nov 27, 1990
Filed: Jan 2, 1990
Inventor
James M. Grace
Assignee (at issue)
Amana Refrigeration, 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.