Granted Patent
Utility
US 5,362,454 · App. 08/084,657
High temperature heat exchanger
Inventors:
Lloyd E. Cizmer, Jing M. Lee, Thomas M. O'Connor
Patented Case
View Patent ↗
Granted: Nov 8, 1994
Filed: Jun 28, 1993
Inventors
Lloyd E. Cizmer
Jing M. Lee
Thomas M. O'Connor
Assignee (at issue)
The M.W. Kellogg 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.