Granted Patent
Utility
US 6,170,270 · App. 09/239,877
Refrigeration system using liquid-to-liquid heat transfer for warm liquid defrost
Inventors:
Yakov Arshansky, David K. Hinde
Patented Case
View Patent ↗
Granted: Jan 9, 2001
Filed: Jan 29, 1999
Inventors
Yakov Arshansky
David K. Hinde
Assignee (at issue)
Delaware Capital Formation, Inc.
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.