Granted Patent
Utility
US 4,731,310 · App. 06/896,690
Cathodic electrode
Inventors:
Menahem Anderman, Joseph T. Lundquist
Patented Case
View Patent ↗
Granted: Mar 15, 1988
Filed: Aug 15, 1986
Inventors
Menahem Anderman
Joseph T. Lundquist
Assignee (at issue)
W. R. Grace & Co.
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.