Granted Patent
Utility
US 6,228,664 · App. 09/355,668
Calibration method for radiation spectroscopy
Inventors:
Frazier Bronson, Valerii V. Atrashkevich
Patented Case
View Patent ↗
Granted: May 8, 2001
Filed: Jul 29, 1999
Inventors
Frazier Bronson
Valerii V. Atrashkevich
Assignee (at issue)
CANBERRA INDUSTRIES, INC.
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.