Granted Patent
Utility
US 5,615,559 · App. 08/396,553
Method and apparatus for recirculating product in a refrigeration system
Inventors:
John E. Kress, James W. Griffin
Patented Case
View Patent ↗
Granted: Apr 1, 1997
Filed: Mar 1, 1995
Inventors
John E. Kress
James W. Griffin
Assignee (at issue)
APV Crepaco, 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.