Granted Patent
Utility
US 5,945,592 · App. 09/162,682
System and method for isotope ratio analysis and gas detection by photoacoustics
Inventor:
Mau-Song Chou
Patented Case
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Granted: Aug 31, 1999
Filed: Sep 29, 1998
Inventor
Mau-Song Chou
Assignee (at issue)
TRW Limited
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.