Granted Patent
Utility
US 5,168,420 · App. 07/616,166
Ferroelectrics epitaxially grown on superconducting substrates
Inventors:
Ramamoorthy Ramesh, Jean-Marie Tarascon
Patented Case
View Patent ↗
Granted: Dec 1, 1992
Filed: Nov 20, 1990
Inventors
Ramamoorthy Ramesh
Jean-Marie Tarascon
Assignee (at issue)
Bell Communications Research, 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.