Granted Patent
Utility
US 5,386,833 · App. 08/173,522
Method for calibrating a carbon dioxide monitor
Inventor:
David Uhen
Patented Case
View Patent ↗
Granted: Feb 7, 1995
Filed: Dec 23, 1993
Inventor
David Uhen
Assignee (at issue)
Biochem International, 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.