Granted Patent
Utility
US 5,556,556 · App. 08/359,869
Method for producing endothermic atmospheres and non-catalytic probe therefor
Inventors:
Robert N. Blumenthal, Andreas T. Melville
Patented Case
View Patent ↗
Granted: Sep 17, 1996
Filed: Dec 20, 1994
Inventors
Robert N. Blumenthal
Andreas T. Melville
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.