Granted Patent
Utility
US 6,277,645 · App. 09/674,897
Method and apparatus for respiratory gas analysis employing measurement of expired gas mass
Inventor:
James Mault
Patented Case
View Patent ↗
Granted: Aug 21, 2001
Filed: Nov 7, 2000
Inventor
James Mault
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.