Granted Patent
Utility
US 6,662,592 · App. 10/074,268
Ice cream machine including a secondary cooling loop
Inventors:
Harold F. Ross, Daniel Dorn
Patented Case
View Patent ↗
Granted: Dec 16, 2003
Filed: Feb 12, 2002
Inventors
Harold F. Ross
Daniel Dorn
Assignee (at issue)
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.