Granted Patent
Utility
US 5,321,970 · App. 07/872,235
Method and apparatus for calibrating a spectrometer
Inventors:
Anthony Davies, Harald Martens
Patented Case
View Patent ↗
Granted: Jun 21, 1994
Filed: Apr 22, 1992
Inventors
Anthony Davies
Harald Martens
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.