Granted Patent
Utility
US 6,614,021 · App. 09/787,773
Ion optical system for a mass spectrometer
Inventor:
Iouri Kalinitchenko
Patented Case
View Patent ↗
Granted: Sep 2, 2003
Filed: Mar 21, 2001
Inventor
Iouri Kalinitchenko
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.