Granted Patent
Utility
US 6,202,425 · App. 09/161,335
Non-compression cascade refrigeration system for closed refrigerated spaces
Inventors:
Yakov Arshansky, David K. Hinde, Anthony Papagna
Patented Case
View Patent ↗
Granted: Mar 20, 2001
Filed: Sep 25, 1998
Inventors
Yakov Arshansky
David K. Hinde
Anthony Papagna
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.