Granted Patent
Utility
US 5,432,343 · App. 08/071,441
Ion focusing lensing system for a mass spectrometer interfaced to an atmospheric pressure ion source
Inventors:
Erol Gulcicek, Craig M. Whitehouse
Patented Case
View Patent ↗
Granted: Jul 11, 1995
Filed: Jun 3, 1993
Inventors
Erol Gulcicek
Craig M. Whitehouse
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.