Granted Patent
Utility
US 4,448,036 · App. 06/486,252
Refrigeration system
Inventor:
Frank M. Iannelli
Patented Case
View Patent ↗
Granted: May 15, 1984
Filed: Apr 18, 1983
Inventor
Frank M. Iannelli
Assignee (at issue)
Gerlach Industries
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.