Granted Patent
Utility
US 5,324,415 · App. 07/800,607
Apparatus and systems for analyzing a sample of treatment atmosphere having a carbon potential
Inventors:
Robert N. Blumenthal, Andreas T. Melville
Patented Case
View Patent ↗
Granted: Jun 28, 1994
Filed: Nov 27, 1991
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.