Granted Patent
Utility
US 5,424,539 · App. 08/167,537
Process for the analysis of gaseous components by mass spectrometry
Inventors:
Willi Brand, Karleugen Habfast
Patented Case
View Patent ↗
Granted: Jun 13, 1995
Filed: Dec 14, 1993
Inventors
Willi Brand
Karleugen Habfast
Assignee (at issue)
Finnegan 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.