Granted Patent
Utility
US 5,456,309 · App. 08/152,574
Method of transferring heat between a feed material and heat exchange
Inventor:
Robin C. Vannucci, Jr.
Patented Case
View Patent ↗
Granted: Oct 10, 1995
Filed: Nov 15, 1993
Inventor
Robin C. Vannucci, Jr.
Assignee (at issue)
Dixie Chemical Company
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.