Granted Patent
Utility
US 6,119,472 · App. 09/234,970
Ice cream machine optimized to efficiently and evenly freeze ice cream
Inventor:
Harold F. Ross
Patented Case
View Patent ↗
Granted: Sep 19, 2000
Filed: Jan 21, 1999
Inventor
Harold F. Ross
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.