Granted Patent
Utility
US 4,947,653 · App. 07/371,588
Ice making machine with freeze and harvest control
Inventors:
Donald D. Day, Delbert J. Potter
Patented Case
View Patent ↗
Granted: Aug 14, 1990
Filed: Jun 26, 1989
Inventors
Donald D. Day
Delbert J. Potter
Assignee (at issue)
Hussmann 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.