Granted Patent
Utility
US 5,691,817 · App. 08/700,155
Apparatus and method for calibration in a spectrophotometer
Inventors:
Mark A. Cargill, Bernard J. Berg
Patented Case
View Patent ↗
Granted: Nov 25, 1997
Filed: Aug 20, 1996
Inventors
Mark A. Cargill
Bernard J. Berg
Assignee (at issue)
X-RITE INCORPORATED
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.