Granted Patent
Utility
US 5,153,675 · App. 07/484,221
Modular optical system for Fourier transform infrared spectrometer
Inventor:
Kenn A. Beauchaine
Patented Case
View Patent ↗
Granted: Oct 6, 1992
Filed: Feb 22, 1990
Inventor
Kenn A. Beauchaine
Assignee (at issue)
Nicolet Instrument Corporation
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.