Granted Patent
Utility
US 3,948,751 · App. 04/771,665
Valve metal electrode with valve metal oxide semi-conductive face
Inventors:
Giuseppe Bianchi, Vittorio de Nora, Patrizio Gallone, Antonio Nidola
Patented Case
View Patent ↗
Granted: Apr 6, 1976
Filed: Oct 29, 1968
Inventors
Giuseppe Bianchi
Vittorio de Nora
Patrizio Gallone
Antonio Nidola
Assignee (at issue)
Oronzio deNora Impianti Elettrochimici S.p.A.
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.