Granted Patent
Utility
US 5,369,481 · App. 07/880,807
Portable spectrophotometer
Inventors:
Bernard J. Berg, Thomas J. Boes, Mark A. Cargill, Patrick S. Rood
Patented Case
View Patent ↗
Granted: Nov 29, 1994
Filed: May 8, 1992
Inventors
Bernard J. Berg
Thomas J. Boes
Mark A. Cargill
Patrick S. Rood
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.