Granted Patent
Utility
US 5,340,664 · App. 08/128,522
Thermally integrated heat exchange system for solid oxide electrolyte systems
Inventor:
Joseph J. Hartvigsen
Patented Case
View Patent ↗
Granted: Aug 23, 1994
Filed: Sep 29, 1993
Inventor
Joseph J. Hartvigsen
Assignee (at issue)
Ceramatec, 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.