Granted Patent
Utility
US 6,552,786 · App. 09/653,022
Electrothermal furnace for an atomic absorption spectrometer
Inventors:
Wolfgang Frech, Lars E. Lundmark, Bernhard Radziuk, Rolf Tamm
Patented Case
View Patent ↗
Granted: Apr 22, 2003
Filed: Sep 1, 2000
Inventors
Wolfgang Frech
Lars E. Lundmark
Bernhard Radziuk
Rolf Tamm
Assignee (at issue)
Berthold GmbH & Co. KG
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.