Granted Patent
Utility
US 6,741,365 · App. 10/021,112
Photometric calibration of liquid volumes
Inventor:
Richard H. Curtis
Patented Case
View Patent ↗
Granted: May 25, 2004
Filed: Dec 12, 2001
Inventor
Richard H. Curtis
Assignee (at issue)
Artel, 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.