Granted Patent
Utility
US 5,494,598 · App. 08/227,092
Heat exchange medium and articles for use thereof
Inventor:
Thomas E. Hughes
Patented Case
View Patent ↗
Granted: Feb 27, 1996
Filed: Apr 13, 1994
Inventor
Thomas E. Hughes
Assignee (at issue)
Thermionics Corporation
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.