Granted Patent
Utility
US 6,452,165 · App. 09/376,448
Faraday collector for measuring ion currents in mass spectrometers
Inventor:
Johannes Schwieters
Patented Case
View Patent ↗
Granted: Sep 17, 2002
Filed: Aug 18, 1999
Inventor
Johannes Schwieters
Assignee (at issue)
Finnigan MAT GmbH
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.