Granted Patent
Utility
US 5,811,207 · App. 08/616,002
Charge exchange body with large active surface and a method for manufacture thereof
Inventors:
Martha Maly-Schreiber, Aronld van Zyl, Josef Ritter, Reinhold Hilpert
Patented Case
View Patent ↗
Granted: Sep 22, 1998
Filed: Mar 14, 1996
Inventors
Martha Maly-Schreiber
Aronld van Zyl
Josef Ritter
Reinhold Hilpert
Assignee (at issue)
Daimler-Benz AG
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.