Granted Patent
Utility
US 4,409,301 · App. 06/332,519
Bifunctional gas diffusion electrode
Inventors:
Herman F. Angerer, Nenad R. Tomov
Patented Case
View Patent ↗
Granted: Oct 11, 1983
Filed: Dec 21, 1981
Inventors
Herman F. Angerer
Nenad R. Tomov
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.