Granted Patent
Utility
US 5,184,016 · App. 07/639,802
Glow discharge spectrometry
Inventors:
Gerard Ronan, Alistair Cole
Patented Case
View Patent ↗
Granted: Feb 2, 1993
Filed: Jan 10, 1991
Inventors
Gerard Ronan
Alistair Cole
Assignee (at issue)
VG Instruments Group Limited
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.