Granted Patent
Utility
US 4,235,697 · App. 06/088,891
Oxygen selective anode
Inventors:
John E. Bennett, Joseph E. Elliott
Patented Case
View Patent ↗
Granted: Nov 25, 1980
Filed: Oct 29, 1979
Inventors
John E. Bennett
Joseph E. Elliott
Assignee (at issue)
Diamond Shamrock Corporation
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.