Granted Patent
Utility
US 5,083,864 · App. 07/656,287
Graphite tube furnace with stationary specimen support for atomic absorption spectoscopy
Inventors:
Bruno Huetsch, Bernd Schmidt
Patented Case
View Patent ↗
Granted: Jan 28, 1992
Filed: Feb 14, 1991
Inventors
Bruno Huetsch
Bernd Schmidt
Assignee (at issue)
Ringsdorff-Werke 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.