Granted Patent
Utility
US 6,559,941 · App. 09/856,660
UV-VIS spectrophotometry
Inventor:
Michael Ron Hammer
Patented Case
View Patent ↗
Granted: May 6, 2003
Filed: May 22, 2001
Inventor
Michael Ron Hammer
Assignee (at issue)
Varian Australia Pty Ltd
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.