Granted Patent
Utility
US 5,348,651 · App. 08/035,670
Membrane simulator
Inventors:
Timothy J. Carlson, Richard D. Geiger, Gerald A. Karls, Bruce A. Meysembourg
Patented Case
View Patent ↗
Granted: Sep 20, 1994
Filed: Mar 23, 1993
Inventors
Timothy J. Carlson
Richard D. Geiger
Gerald A. Karls
Bruce A. Meysembourg
Assignee (at issue)
Aqua-Chem, Inc.
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.