Granted Patent
Utility
US 6,074,882 · App. 08/736,372
Device determining a concentration of a gas mixture
Inventor:
Bernd Eckardt
Patented Case
View Patent ↗
Granted: Jun 13, 2000
Filed: Oct 24, 1996
Inventor
Bernd Eckardt
Assignee (at issue)
Siemens Aktiengesellschaft
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.