Granted Patent
Utility
US 5,680,209 · App. 08/381,911
Spectroscopic systems for the analysis of small and very small quantities of substances
Inventor:
Meinrad Machler
Patented Case
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Granted: Oct 21, 1997
Filed: May 2, 1995
Inventor
Meinrad Machler
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.