Granted Patent
Utility
US 5,498,321 · App. 08/281,723
Electrolysis cell diaphragm reclamation
Inventors:
Mark L. Arnold, James R. Brannan, Richard A. Kus, Richard L. Romine
Patented Case
View Patent ↗
Granted: Mar 12, 1996
Filed: Jul 28, 1994
Inventors
Mark L. Arnold
James R. Brannan
Richard A. Kus
Richard L. Romine
Assignee (at issue)
OxyTech Systems, 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.