Granted Patent
Utility
US 5,448,070 · App. 08/065,997
Identification of unknown gases using infrared absorption spectroscopy
Inventors:
Stephen Day, Kailash Swarna
Patented Case
View Patent ↗
Granted: Sep 5, 1995
Filed: May 21, 1993
Inventors
Stephen Day
Kailash Swarna
Assignee (at issue)
Fox Boro 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.